The invention provides multifunctional large-scale movable stone screening equipment. The equipment comprises a movable seat, movable brake wheels, a groove, a supporting plate, a U-shaped fixed seat,a fixed rotary drum screen structure, a supportable separating seat structure, an adjustable feeding plate structure, an adjustable rotary supporting pipe structure, a feeding pipe, a feeding motor,a feeding hopper, a stone screening motor and a spiral pipe, wherein the movable brake wheels are respectively in bolted connection with four corners of the lower end of the movable seat. A connectingseat, a second wing bolt, a guide plate, a conical plate, the feeding pipe and the spiral pipe are arranged, so that stone is pushed through the guide plate and the conical plate in the working process and then contacts the spiral pipe, and the feeding work is conveniently carried out; and a collecting seat, a U-shaped supporting frame, a separating plate and a hexagon socket bolt are arranged, so that separation of the screened stone is carried out conveniently through the separating plate in the working process, and the screened stone is prevented from being mixed to influence the stone screening effect.