Coal crushing and screening device

The utility model discloses a coal crushing and screening device which comprises a shell, the top of the shell is fixedly connected with a feeding hopper, the top of an inner cavity of the shell is fixedly connected with a crushing box, the left side of an inner cavity of the crushing box is fixedly connected with a vertical plate, and the right side of the vertical plate is fixedly connected with a first crushing cutter. And an inner cavity of the crushing box is movably connected with a rotating rod. Through cooperation of the shell, the feeding hopper, the crushing box, the vertical plate, a first crushing cutter, a rotating rod, a second crushing cutter, a dust collection plate, a filtering box, a filtering plate, a draught fan, a partition plate, a first motor, a first transmission wheel, a second transmission wheel, a material receiving box, a through opening, a groove, a sliding rod, a spring, a sliding block, a screening plate, a second motor, a cam, a connecting rod, a transverse plate and a material