An air dryer includes a dryer body, a wind-collecting nozzle mounted in front of the dryer body. The wind-collecting nozzle includes a wind-collecting nozzle body communicated with the dryer body, and has a plurality of air openings spacedly formed thereon. Two blowing pieces are supported by the wind-collecting nozzle body, wherein each of the blowing pieces has a blowing outlet. Moreover, a plurality of connecting rims is mounted between the blowing pieces and the wind-collecting nozzle body at the air openings respectively for rotatably connecting the blowing pieces with the wind-collecting nozzle body, so that the air dryer is capable of delivering air at a predetermined orientation through the air openings and the blowing outlets.