Non-road mobile machinery tail gas emission filtering device

The utility model provides a non-road mobile machinery tail gas emission filtering device, and belongs to the technical field of tail gas filtering. The device comprises a filter cartridge, an air passing cylinder and a connecting cylinder, the filter cartridge comprises a lower filter cartridge and an upper filter cartridge, the lower filter cartridge and the upper filter cartridge are each of a semi-arc-shaped structure, at least three sets of arc-shaped clamping grooves are formed in the inner wall of each of the lower filter cartridge and the upper filter cartridge, filter plates are clamped in the arc-shaped clamping grooves, and an adsorbent groove is formed in the bottom of the lower filter cartridge; one end of the filter cartridge is fixedly connected with an air inlet guide cylinder, the other end of the filter cartridge is fixedly connected with an air outlet guide cylinder, and an air outlet is formed in one end, far away from the filter cartridge, of the air outlet guide cylinder. The three-stage