The invention discloses a coal crushing and drying integral device with a screening function. The coal crushing and drying integral device comprises a first motor, a bulge, a material tank, a second motor, a filtering net, a filtered substance recycling tank, a rotating shaft and a partition plate, wherein the first motor is connected with a conveying device; the upper end of a telescopic rod is connected with a hydraulic cylinder; a connecting disc is fixed at the lower end of the telescopic rod; a fixed hemisphere is connected with the connecting disc; crushing corns are distributed on the fixing hemisphere; the material tank is arranged at the right end of the conveying device; a lifting device is connected with the right side of the material tank; the lifting device is connected with the second motor; a hopper is fixed on the lifting device; the filtering net is arranged at the bottom of the hopper. Due to adoption of the filtering net on the hopper, the coal crushing and drying integral device with the screening function is capable of screening coal while the coal is conveyed and crushed, then coal cinder in the coal can be collected and treated for a second time, and the situation of coal cinder waste is avoided.