The invention discloses an extraction and enrichment device for micro-plastics in
livestock and poultry excrement. The device comprises a device body, idler wheels, a cabinet door, an observation window, a feeding port, a first motor, a water pump, a
water pipe, a second motor, a control panel, a shell, a water tank, supporting legs, an enrichment box, a bearing, a
threaded rod, a third filter plate, rectangular grooves, a first filter plate, a threaded sleeve, a scraper, a second filter plate, a stirring box, an electric valve, fixed blocks, stirring blades, a rotating shaft and a spray head.The device has the beneficial effects that: the rectangular grooves are formed in one sides of the third filter plate, the second filter plate and the first filter plate, centralized collection of micro-plastics is facilitated, the four idler wheels are arranged, the device is convenient to move according to actual needs, filter holes of the third filter plate, the second filter plate and the first filter plate are sequentially increased, the micro-plastics with different diameters can be conveniently filtered and recycled, a small-aperture filter screen is adopted at the bottom of the enrichment box, the collected micro-plastics are convenient to enrich, and the working efficiency is improved.