An air conditioner comprising: a housing including an inlet and an outlet; a 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 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 characterized in that the blow fan assembly comprises: a blow fan rotating on the rotating shaft; a driving part configured to rotate the blow fan; and a fan case configured to cover the blow fan, and including: a first boss detachably couplable with a first inner side of the housing, and a second boss detachably couplable with a second inner side of the housing opposite to the first side, the air conditioner being further characterised in that the housing comprises: a body frame coupled with the first boss or the second boss, and including an opening; and a first cover coupled with: the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss. a housing including an inlet and an outlet; a 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 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 characterized in that the blow fan assembly comprises: a blow fan rotating on the rotating shaft; a driving part configured to rotate the blow fan; and a fan case configured to cover the blow fan, and including: a first boss detachably couplable with a first inner side of the housing, and a second boss detachably couplable with a second inner side of the housing opposite to the first side, the air conditioner being further characterised in that the housing comprises: a body frame coupled with the first boss or the second boss, and including an opening; and a first cover coupled with: the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss. inhale air in the vertical direction in which the rotating shaft extends, and 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 characterized in that the blow fan assembly comprises: a blow fan rotating on the rotating shaft; a driving part configured to rotate the blow fan; and a fan case configured to cover the blow fan, and including: a first boss detachably couplable with a first inner side of the housing, and a second boss detachably couplable with a second inner side of the housing opposite to the first side, the air conditioner being further characterised in that the housing comprises: a body frame coupled with the first boss or the second boss, and including an opening; and a first cover coupled with: the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss. a blow fan rotating on the rotating shaft; a driving part configured to rotate the blow fan; and a fan case configured to cover the blow fan, and including: a first boss detachably couplable with a first inner side of the housing, and a second boss detachably couplable with a second inner side of the housing opposite to the first side, the air conditioner being further characterised in that the housing comprises: a body frame coupled with the first boss or the second boss, and including an opening; and a first cover coupled with: the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss. a first boss detachably couplable with a first inner side of the housing, and a second boss detachably couplable with a second inner side of the housing opposite to the first side, the air conditioner being further characterised in that the housing comprises: a body frame coupled with the first boss or the second boss, and including an opening; and a first cover coupled with: the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss. a body frame coupled with the first boss or the second boss, and including an opening; and a first cover coupled with: the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss. the second boss when the body frame is coupled with the first boss, and the first boss when the body frame is coupled with the second boss.