To provide an air conditioning indoor unit capable of easily deviating blow out air to a target position blowing downward during heating operation.

In an air conditioning indoor unit 10, an outside surface 32a of a Coanda blade 32 includes a convex-shape outside curved surface, and generates a Coanda air flow along the outside curved surface. An inside surface 32b of the Coanda blade 32 includes a convex-shape inside curved surface, and generates a Coanda air flow along the inside curved surface. Blow out air becomes the Coanda air flow directed to a floor along the inside curved surface by directing a front end of the Coanda blade 32 downward during heating operation. The Coanda air flow directed to the floor can suppress an air flow advancing forward along the outside curved surface.