The purpose of the invention is to allow an air current striking a wind direction plate to be clearly divided toward an inclined direction to the right and left in the front and to achieve this with little pressure loss using only the structure of the wind direction plate. A wind direction plate 20 is disposed on an outlet 17 of an air purifier 1. The wind direction plate 20 changes the direction that air is blown by a wind direction changing face 21 on one side interfering with the air current. The wind direction changing face 21 is provided with two air guiding faces 22 to guide the air current from near the center of the upstream side toward one and the other of two corners on the downstream side.