Abstract: An improved air conditioner for supplying temperature-controlled air to the interior of a room from a ceiling position where the air conditioner is installed without danger of condensate dripping from the air conditioner into the room. Air is sucked from an outer case intake vent into a heat exchanger and the cooled air is blown into the room with blowers. The heat exchanger and the blowers are installed in a suspended outer case in a space above the ceiling of the room. The air sucked from the intake vent is led to air supply vents provided on both sides of the undersurface of the outer case through the air supply trunk, the air supply trunk being divided into sections by a bulkhead.