Polishing filter

The utility model discloses a polishing filter which comprises a charging barrel and a polishing filter cartridge, the charging barrel is installed at the upper end of the outer wall of the polishing filter cartridge, grain and oil raw materials are filled in the charging barrel, a polishing mechanism and a filter mechanism are installed in the polishing filter cartridge, and the polishing mechanism comprises a main polishing roller, an auxiliary polishing roller and a driving mechanism. When the polishing machine is used, raw materials are fed into the polishing filter cylinder through the charging barrel, the motor drives the main polishing roller to rotate and drives the auxiliary polishing roller at the same time, the raw materials are polished through the two sets of polishing rollers, the gear ring drives the material pushing plate to push the materials away from the polishing rollers towards the polishing rollers while polishing is conducted, and therefore the polishing effect is achieved. And in the p