Variable-frequency high-speed stirrer

The utility model discloses a variable-frequency high-speed mixer which comprises a variable-frequency motor and a top cover, the variable-frequency motor is installed on the upper end face of the top cover, a box body is welded to the lower end face of the top cover, a filter screen is arranged in the box body, and an output shaft of the variable-frequency motor penetrates through the top cover and extends into the box body to be provided with a reciprocating ball screw. The reciprocating ball screw is provided with an inner wall scraper device, a stirring shaft is welded to the bottom end of the reciprocating ball screw, a plurality of stirring blades are evenly welded to the outer wall of the stirring shaft, a plurality of scrapers are symmetrically welded to the bottom end of the stirring shaft, and each scraper makes contact with the upper end face of the filter screen. The stirring device is reasonable in structural flow design, and the inner wall scraping plate device is arranged on the reciprocating b