Matcha superfine grinding equipment

The utility model relates to superfine grinding equipment for matcha, which comprises a shell provided with a feed port, a discharge port, an air inlet and a limit groove; the filter screen oscillation mechanism comprises a mounting seat; the mounting seat is fixedly mounted on the shell; a spiral shaft is rotatably mounted on the mounting seat, a first spiral groove, a second spiral groove and a vertical groove are formed in the spiral shaft, and a circular limiting table is further arranged at the lower end of the spiral shaft; the spiral shaft is sleeved with an impact ring, the impact ring is connected with the mounting base through an elastic assembly, and a second spiral key is arranged on an inner ring of the impact ring; the spiral shaft is further sleeved with a filter screen, the filter screen is placed on the limiting table, a first spiral key is arranged on an inner ring of the filter screen, and a limiting device in sealing fit with the shell is arranged on an outer ring of the filter screen; the