The utility model provides a peanut sheller, which comprising a three-roller peanut sheller; a primary roller frame of the three-roller peanut sheller is provided with a synchronizing roller which is arranged in parallel and has the same length and diameter with the primary roller frame; a transmission device is connected between one end of the synchronizing roller and the primary roller; a triangular material distributing plate is fixed above the synchronizing roller in a material supply box; sliding plates are arranged at two sides in the material supply box above the material distributing plate, corresponding to the two slopes of the material distributing plate respectively; the upper surface of the lower part of the sliding plate is provided with an adjustable strobe respectively; observing windows are respectively arranged on the side wall of the material supply box, corresponding to two sides of the material distributing plate; material inlet holes are arranged above two sides of the material supply box; and an air dispersing box communicated with the exhaust pipe is arranged in the upper hole of the material supply box. By improving the existing three-roller peanut sheller, the peanut sheller in the utility model can be used for shelling the wet peanut and dry peanut, and has the advantages of having high shelling efficiency, low damage rate, and saving equipment investment and working cost.