PURPOSE: To reduce the amount of water used, power consumption and noise to miniaturize the entire part of the air conditioner by connecting an air cooling type condenser and a water cooling type condenser to each other to constitute a condenser in a freezing cycle.

CONSTITUTION: The air cooling type condenser 13 and the water cooling type condenser 14 are connected to each other to constitute a condenser during freezing cycle. When a room fan 19 is rotated and driven by means of a motor 20, indoor air is sucked up through a suction hole 22 formed in a case 11 into an upper chamber 17, and indoor air cooled by heat exchange with the coolant within an evaporator 15 is blown off as cooled air flow into the room through a blow-off port 23 formed in the case 11. Simultaneously therewith, first and second exhaust fans 25 and 26 are rotated and driven by means of the motor 20, and outdoor air is sucked up into a lower chamber 18 through a suction hose 33. The exhaust air heated by the heat exchange with the coolant within the air cooling type condenser 13 is introduced into an exhaust duct 29 by the first exchaust fan 25. The exhaust air of high humidity which has passed through the periphery of the outer cooling type condenser 14 is introduced into the exhaust duct 29 by the exhaust second fan 26, and is discharged out of the room through an exhaust hose 31.