Air conditioner

An air conditioner including a fan disposed inside a housing and that sends air, an outlet provided in a bottom surface of the housing, and an air passage wall that is provided inside the housing and that guides the air sent from the fan through the outlet to the outside, the air conditioner comprising:

• a stepped portion provided on a side of the outlet of the air passage wall;
• an air passage extension that has a first rotary shaft in the outlet, and that rotates in an opening direction about the first rotary shaft to constitute a curved surface of a predetermined curvature by integration with the air passage wall;
• a rotary mechanism that rotates the air passage extension when an operation is performed;
• and
• a flap that has a second rotary shaft in the outlet to guide the air sent from the fan to the outside, and that is entirely covered with the air passage wall from a blowing side when the air passage extension is closed.