High-frequency magnetic carbon return precision filter

The utility model relates to the technical field of water treatment equipment, and discloses a high-frequency magnetic carbon return precision filter which comprises a cylinder body, connecting pipes A are arranged at the two ends of the cylinder body, mounting through holes are formed in the inner walls of the connecting pipes A, balls are mounted in the mounting through holes, the diameter of each ball is larger than the wall thickness of each connecting pipe A, and a shell for extruding the balls is mounted on each connecting pipe A; the connecting pipe B is clamped in the connecting pipe A through the ball, the connecting pipe A is further provided with a limiting mechanism for limiting the shell to move in the axis direction of the connecting pipe A, and the connecting pipe A is provided with a lug seat A. The fine filter has the advantages that after the nut is screwed off and the screw rod is pulled out of the lug seat, the fine filter is rotated to pour out the filtering material, then the fine filter