Air conditioner with air purifying function

1. An air conditioner with an air purifying function, the air conditioner comprising:

a housing having an air inlet and an air outlet thereon;

an air conditioning flue provided in the housing with a first fan and a heat exchanger therein;

an air purifying flue provided in the housing with a second fan and an air filter screen therein;

wherein the air conditioning flue and the air purifying flue are connected in series, an air entering side of the air purifying flue is connected to the air inlet, an air exiting side of the air purifying flue is connected to an air entering side of the air conditioning flue, and an air exiting side of the air conditioning flue is connected to the air outlet; and

a ventilation door provided at an auxiliary tuyere disposed on the housing at a position corresponding to a joint of the air conditioning flue and the air purifying flue, wherein the ventilation door is switchable between a first position and a second position;

wherein when the ventilation door is placed at the first position, the ventilation door blocks the auxiliary tuyere and the air conditioning flue is connected to the air purifying flue;

when the ventilation door is placed at the second position, the ventilation door opens the auxiliary tuyere and the air conditioning flue is disconnected from the air purifying flue, and the air exiting side of the air purifying flue is connected to the auxiliary tuyere;

an air conditioner inlet is disposed on the housing, the air conditioner inlet is connected to the air entering side of the air conditioning flue, an air entering grating is disposed at the air conditioner inlet, and the air entering grating is able to open or close the air conditioner inlet; and

the heat exchanger is a V-shaped heat exchanger or a U-shaped heat exchanger, a portion of the heat exchanger is located between the air conditioner inlet and an air entering side of the first fan, and another portion of the heat exchanger is located between the air exiting side of the air purifying flue and the air entering side of the first fan.

2. The air conditioner according to claim 1 , further comprising a lap plate provided on a side wall in the housing opposite to a side wall where the ventilation door is provided;

wherein the ventilation door is hinged to an edge of a side of the auxiliary tuyere close to the air conditioning flue, the ventilation door is rotatable toward the inside of the housing, and when the ventilation door is rotated to the second position, the ventilation door is lapped with the lap plate, so as to disconnect the air conditioning flue and the air purifying flue.

3. The air conditioner according to claim 2 , further comprising a slot provided on a side wall in the housing opposite to a side wall where provided with the ventilation door is provided,

wherein the lap plate is inserted into the slot and is able to slide relative to the slot to change a length of the lap plate extending into the housing.

4. The air conditioner according to claim 3 , further comprising an air deflector provided in the housing and located between the air exiting side of the air purifying flue and the air entering side of the air conditioning flue;

wherein an extending and contracting direction of the lap plate is disposed to be parallel to an extending direction of the air deflector.

5. The air conditioner according to claim 1 , wherein the ventilation door is able to switch to a third position, and when the ventilation door is switched to the third position, the ventilation door can block the air conditioner inlet.

6. The air conditioner according to claim 5 , wherein the air conditioner inlet is disposed close to a hinged joint of the ventilation door, the ventilation door is rotatable toward the outside of the housing, and when the ventilation door is rotated to the third position, the ventilation door is attached to the outside wall of the air conditioner inlet to block the air conditioner inlet.

7. The air conditioner according to claim 1 , wherein the ventilation door is able to switch to a fourth position, and when the ventilation door is switched to the fourth position, the ventilation door is located outside the housing and is perpendicular to the outside wall of the housing provided with the auxiliary tuyere.

8. The air conditioner according to claim 7 , wherein the ventilation door is a detachable ventilation door.

9. The air conditioner according to claim 1 , wherein the first fan and the second fan are cross-flow fans.

10. The air conditioner according to claim 1 , wherein the air filter screen is a high efficiency particle air filter.

11. The air conditioner according to claim 1 , wherein the air purifying flue is provided with a fragrance module, a nano-water ion module, or an electronic sterilization module.