To provide an air conditioner for appropriately adjusting air in a room, especially a trihedral delivery type air conditioner capable of exhibiting a more comfortable air conditioning function by allowing suction/delivery to not only the front surface but also tilting side surfaces.

This air conditioner has inlet ports and outlet ports in a cabinet so that an air state is changed and air can be delivered into the room after sucking the air in the room. The inlet ports are formed on the downside of both side surfaces of the cabinet, and the outlet ports are formed on the upside of the front surface and both side surfaces of the cabinet.