The equipment is composed of a frame, bottom plate (feeding coal trough), driving platform, funnel gate, roller and so on. After the motor works, the elastic coupling, reduction gear and crank linkage support the bottom plate with a tilt of 5° to make linear reciprocating motion on the idler, so as to uniformly unload the coal mine onto the conveyor or other screening equipment. The coal feeder can be provided with two types of funnel and no funnel according to the needs, and is provided with two types of structure: with adjustment gate and without adjustment gate, and its productivity can be realized with adjustment gate.