The utility model relates to a high-safety crushing device which comprises a conveying hopper, a feeding frame, a
crusher, a discharging slide way, a material collecting box, an
elevator and a material carrying
barrel, the conveying hopper is vertically arranged, a sealing plate is arranged at the top end of the conveying hopper, an
exhaust pipe is arranged on the sealing plate, one end of the
exhaust pipe is communicated with the interior of the conveying hopper, and the other end of the
exhaust pipe is communicated with the material collecting box. The other end of the exhaust
pipe is externally connected with
waste gas treatment equipment; the feeding frame is obliquely arranged on the side wall of the conveying hopper, a feeding port is formed in the end, away from the conveying hopper, of the feeding frame, and a first hydraulic inserting plate door is arranged at the feeding port. The
crusher is arranged below the conveying hopper, a bottom opening of the conveying hopper is in
butt joint and communicated with an inlet of the
crusher, and the top end of the discharging sliding way is in
butt joint and communicated with an outlet of the crusher. The
elevator is arranged beside the feeding frame, a roller conveyor is arranged on a carrying platform of the
elevator, the carrying
barrel is arranged on a conveying roller of the roller conveyor, and the
solid waste is arranged in the carrying
barrel. The crushing device has the effect of improving the safety of the crushing device.