Corrugated air bag extrusion device of wastewater treatment vehicle

The utility model discloses a corrugated air bag extrusion device of a wastewater treatment vehicle. The corrugated air bag extrusion device comprises a cylindrical outer barrel, a cylindrical inner barrel and a corrugated air bag, wherein the cylindrical inner barrel is arranged in the cylindrical outer barrel, the corrugated air bag is arranged in the inner barrel, a water outlet is formed in the lower end of the outer barrel, an air inlet is formed in the upper end of the inner barrel, a discharging cover plate is arranged at the lower end of the inner barrel, the side wall of the inner barrel is connected to a feeding port, multiple through holes are formed in the side wall of the inner barrel, and the feeding port passes through the side wall of the outer barrel. The corrugated air bag extrusion device is arranged in the wastewater treatment vehicle and can be used for carrying out solid-liquid separation on wastewater on the spot, compressing solid waste separated out, reducing the workload in a wastewa