Steam vacuum cleaner

1. A steam vacuum cleaner, comprising:

a suction port assembly including a suction hole formed on a bottom surface thereof and a dust receptacle detachably attached to the suction port assembly;

a pump disposed in the suction port assembly to suction dust-laden air from an object being cleaned and to transfer the dust laden air to the dust receptacle, the pump including an impeller formed on an upper stream in comparison with the dust receptacle with respect to a dust transfer direction, an impeller casing housing the impeller and a first motor to drive the impeller;

a steam unit disposed on the suction port assembly;

a floorcloth unit disposed on the suction port assembly to scrub the object using steam supplied from the steam unit; and

a handle member hinged with a portion of the suction port assembly, wherein the handle member has a variable length,

wherein a passage is connected between the impeller casing and the dust receptacle.

2. The steam vacuum cleaner of claim 1 , wherein

the handle member includes:

a first member, wherein one end of the first member is connected to the suction port assembly; and

a second member hinged with another end of the first member,

wherein the second member folds into a folded position in which it contacts the first member.

3. The steam vacuum cleaner of claim 2 , wherein

the first member includes:

at least one pair of protrusions longitudinally disposed at predetermined intervals.

4. The steam vacuum cleaner of claim 3 , wherein

the second member does not contact the pair of protrusions in the folded position.

5. The steam vacuum cleaner of claim 1 , wherein

the impeller is formed on a passage connecting the suction hole and the dust receptacle; and

the motor is disposed outside of the passage to drive the impeller.

6. The steam vacuum cleaner of claim 1 , wherein the floorcloth unit includes:

at least two floorcloth plates rotatably mounted on the bottom surface of the suction port assembly, wherein a floorcloth is attached to a bottom surface of each floorcloth plate; and

a rotation driving part to drive the at least two floorcloth plates, wherein each floorcloth plate includes:

a plurality of steam passages radially formed on the bottom surface of the floorcloth plate.

7. The steam vacuum cleaner of claim 6 , wherein

the at least two floorcloth plates guide steam supplied from the steam unit to the steam passage of the floorcloth plates through a pair of connecting shafts of the floorcloth plates.

8. The steam vacuum cleaner of claim 1 , wherein

the impeller is formed on a passage connecting the suction hole and the dust receptacle; and the motor is disposed outside of the passage to drive the impeller, wherein the floorcloth unit includes:

at least two floorcloth plates rotatably mounted on the bottom surface of the suction port assembly, wherein a floorcloth is attached to a bottom surface of each floorcloth plate; and

a rotation driving part to receive driving force from the first motor to drive the pair of floorcloth plates.

9. The steam vacuum cleaner of claim 8 , wherein each floorcloth plate includes:

a plurality of steam passages radially formed on the bottom surface of the floorcloth plate.

10. The steam vacuum cleaner of claim 1 , wherein

the steam unit includes:

a water tank;

a heater housing;

a sheath heater, wherein a part of the sheath heater is inserted into the heater housing; and

a pump to supply water stored in the water tank to the heater housing.

11. The steam vacuum cleaner of claim 1 , wherein

the steam unit includes:

a water tank; and

a sheath heater, wherein a part of the sheath heater is inserted into the water tank.

12. The steam vacuum cleaner of claim 1 , wherein

the suction port assembly further includes:

a drum brush rotatably mounted in the suction hole.