An air conditioner (100) includes a casing (50), an axial fan (1), and a heat exchanger (3). The casing includes a panel (6) having an air inlet (8) and an air outlet (9) formed therein to be open toward a target space. An air duct having the air outlet as an outlet is defined by a heat exchanger outlet-side wall (10), an opposing wall (11), and two side walls (12). An airflow direction flap (13) is arranged at the air outlet, and includes a main body (13c), two support plates (13b), and two rotation shafts (13a). An air velocity reducing portion (18) configured to reduce a velocity of a current of air passing through a space between each side wall and each support plate is arranged in the air duct having the air outlet as the outlet.