INDOOR UNIT FOR AIR CONDITIONER

An object of the present invention is to provide an indoor unit of an air conditioner that can prevent an increase in noise due to interference of a flow of the air discharged from a centrifugal fan with a drain pan. The indoor unit of the air conditioner includes an indoor-unit suction port 3 for sucking the indoor air into the indoor unit, a centrifugal blower 5 configured to discharge the air sucked from the indoor-unit suction port 3 to the periphery, a heat exchanger 8 provided on a discharge side of the centrifugal blower 5, a blowout port 12 for the air provided on a downstream side of the heat exchanger 8, and a drain pan 9 provided under the heat exchanger 8 and configured to receive moisture condensation water. The lower end of a discharge port 7b of the centrifugal blower 5 is provided in a position higher than an upper end 23a of a wall surface section 23 of the drain pan 9 located on the upstream side with respect to the heat exchanger 8. In the drain pan 9, the upper end 23a of the wall surface section 23 located on the upstream side with respect to the heat exchanger 8 is formed lower than an upper end 22a of a wall surface section 22 located on the downstream side with respect to the heat exchanger 8.