Abstract: A solid and liquid separation device includes a housing provided with a heater so that liquid contained in the housing will not freeze. A filter net layer may divide the housing into an upper space and a lower space. A conveying assembly includes a plurality of connecting rods each having a scraper and a brush. The scraper may contact the filter net layer for driving solids, and the brush may remove solids attached on the filter net layer. A squeeze assembly includes a cylinder provided with a threaded rod that may be rotated to output the solids. A liquid spraying assembly includes a water pumping member for delivering water liquid through a conveying pipe to be sprayed toward the filter net layer through a plurality of nozzles.