The invention relates to the technical field of pulpers, and discloses a pulper cleaning device for solving the problem of shredded paper adhering to the inner wall. The pulper cleaning device comprises a shell, wherein a bin body is fixedly connected to the position below the shell. Water in a water tank is sprayed out through spray heads under the action of pressure by utilizing the change of pressure intensity, so that automatic water spraying is achieved; used and filtered water is recycled by virtue of the action of negative pressure, so that the utilization rate of the water is increased, the water consumption for cleaning is reduced, energy conservation and environmental protection are achieved, and the actual use condition is better met; meanwhile, the magnetic induction line cutting principle is utilized, and the comprehensive cleaning operation is triggered, so that the linkage between structures is increased, and a high degree of automation is achieved; through the combined action of the bin body, a rotating disc, a sleeve set, a rotating column, rotating assemblies, the spray heads and a seat frame, the positions of the spray heads are automatically changed, and the spray heads intermittently move up and down while rotating, so that the water distribution face is increased, comprehensive cleaning is achieved, operation is convenient, and two hands are liberated; and manual intervention is reduced, so that the working efficiency is higher.