Provided is an air conditioning apparatus, including: a main body having at least one air inlet and at least one air outlet; and a heat exchanger (3) arranged in a flow passage of air to be sucked into the main body through the air inlet and blown out to a target space through the air outlet. The air outlet (9) is formed between the heat exchanger (3) and a side panel (4) of the main body in plan view. The air outlet is formed by an inner air duct wall (10) formed on the heat exchanger side, an outer air duct wall (11) formed on the side panel side of the main body, and a pair of side walls (12). A length (L2) of the inner air duct wall is larger than a length (L1) of the outer air duct wall.
