The invention discloses a corn husker, which is characterized by comprising a fixed frame, a husking roll set, a motor, a drive component, a fan component and a top cover. The husking roll set comprises two inner husking rolls and two outer husking rolls which are arranged on the left and right outer sides of the two inner husking rolls respectively; two ends of the inner husking rolls are provided, in a sleeving manner, with first bearing blocks fixedly arranged on the fixed frame; two ends of the outer husking rolls are provided, in the sleeving manner, with second bearing blocks fixedly arranged on the fixed frame; the front ends of the two inner husking rolls are each provided with drive gears in the sleeving manner; the drive gears on the two inner husking rolls are mutually meshed; the motor drives the drive component to further drive the husking roll set, and husks corn through the husking rolls. The corn husker is used for husking the corn through the husking roll set, cannot damage a grain of the corn in a husking process, meanwhile, is clean in husking, meanwhile, has no omission, and is also quite high in husking efficiency, and the corn husker can be adjusted in heightand direction and can be used for husking the corn in a batch manner.