Disclosed herein is an air conditioner. The air conditioner includes a housing including an inlet and an outlet; an discharge duct connected to the outlet, and configured to guide air discharged from the outlet to an indoor space, a blow fan assembly disposed in the inside of the housing such that a rotating shaft of the blow fan assembly extends in a vertical direction, and configured to inhale air in the vertical direction in which the rotating shaft extends and to discharge the air in a radial direction, and a heat exchanger extending along a part of a circumference of the blow fan assembly, and including a bending portion.