The invention discloses a coating packaging and filtering machine. The invention relates to a packaging device, in particular to a coating packaging device with a filtering effect. During filtering, filter mesh holes can be cleaned. The device comprises a stock bin provided with a material outlet in the bottom, wherein a filter mesh is arranged in the stock bin; a material scraping device is arranged above the filter mesh; the material scraping device is driven by a hydraulic device and comprises a material scraper blade arranged in the stock bin; a pair of supporting plates is fixed at the bottom of the material scraper blade; a cylindrical rotary drum is arranged between the pair of supporting plates; a plurality of spines are arranged on the outer wall of the rotary drum; the tip end parts of the plurality of spines are in contact with the filter mesh. In a moving process of the scraper blade, the tip end parts of the spines are inserted into mesh holes of a screen to unblock the blocked mesh holes, thus increasing the filtering speed and improving the filtering efficiency.