Air conditioning apparatus

An air conditioner is provided to easily manufacture an air conditioner while reducing manufacturing cost by reducing the number of components for forming an inner passage. A main body has discharge ports(18) formed at upper parts of both sides and suction ports(17) formed at lower parts of both sides and is formed by combining a front panel with a rear panel(12). A heat exchanger(14) is installed inside the main body on the slant in a forward-and-backward direction, separated from the suction ports. A blower(20) for air-conditioning is installed inside the main body above the heat exchanger. The blower for air-conditioning includes a centrifugal fan(21), a fan casing(23) covering the circumference of the blower, and a discharge air guide part(24) formed with the fan casing to guide air discharged from an outlet of the fan casing toward the discharge ports, wherein the outlet is combined with the discharge ports.