An integrated air conditioner comprises: a housing partitioned into a first housing on the upper side thereof and a second housing on the lower side thereof, wherein the first housing has a first intake port through which external air is introduced thereinto and a first exhaust port through which internal air is exhausted therefrom, and the second housing has a second intake port through which external air is introduced thereinto and a second exhaust port through which internal air is exhausted therefrom; a compressor provided in the interior of the housing to compress a refrigerant; a condenser that is provided on a second fluid channel, which connects the second intake port and the second exhaust port, and condenses the compressed refrigerant, supplied from the compressor, into a liquid phase; an expansion unit that expands the refrigerant, condensed in the condenser, into a low-pressure refrigerant; and an evaporator.