Automatic feeding device for log cutting

The utility model discloses an automatic feeding device for log cutting, which comprises supporting rods, a group of supporting plates are arranged at the tops of a plurality of groups of supporting rods, and a conveying belt is arranged among the group of supporting plates. A bent rod drives a T-shaped plate to move along the inner side of a guide groove under the supporting of a connecting plate, the T-shaped plate drives a transverse plate and a shell to move left and right together, meanwhile, a fan is started, the fan rotates under the supporting of the shell, the fan blows off wood chips on the surface of a conveying belt through an air opening by means of wind power, and the transverse plate drives a brush to move left and right in a manner of being attached to the bottom of the conveying belt; according to the conveying belt cleaning device, the brush is arranged on the conveying belt, the brush cleans the conveying belt through soft and tough bristles, wood chips attached to the surface of the convey