An air conditioner is disclosed. The air conditioner includes a case having a first and a second indoor suction port and a first and a second indoor discharge port, an air conditioning unit having a first and a second heat exchanger, a first indoor flow channel connected between the first indoor suction port and the first indoor discharge port, a second indoor flow channel connected between the second indoor suction port and the second indoor discharge port, and a condensing unit to receive regenerated air, heat-exchanged with the condenser, from one of the first indoor flow channel and the second indoor flow channel, and perform a heat exchange between the regenerated air and a cooling fluid having a lower temperature than the regenerated air.