Safe and environment-friendly jaw crusher

The utility model discloses a safe and environment-friendly jaw crusher. The crusher comprises a pushing plate, a driven gear, a crushing cavity and a flywheel, a flywheel is arranged on one side of the crushing cavity; a pushing plate is arranged on one side of the interior of the crushing cavity, a driven gear is arranged at the bottom end of the pushing plate, a sliding plate is arranged on oneside of the driven gear, an extrusion plate is arranged on one side of the sliding plate, an outlet adjusting assembly is arranged at the bottom end of the extrusion plate, and a vertical plate is arranged on the side, away from the sliding plate, of the extrusion plate. According to the utility model, the outlet adjusting assembly is arranged; prevention of work material blockage, the crushing efficiency is improved, the crushing quality is guaranteed, the crushing cost is reduced, manpower and material resources are saved, the failure rate is reduced, dredging convenience is guaranteed, dredging difficulty is reduc