The utility model discloses a multi-stage filtering device for directional extraction of plants, and belongs to the technical field of
plant extraction. The device mainly comprises a
centrifugal separator and a filtering mechanism, a water inlet
pipe is mounted at the top of the
centrifugal separator, a conveying mechanism is arranged between the
centrifugal separator and the filtering mechanism, and the filtering mechanism comprises a supporting seat, a top cover and a turntable. According to the multi-stage filtering device for directional extraction of the plants, the driving
assembly is used for controlling the
rotating disc to rotate by 180 degrees discontinuously, so that the positions of the two filtering nets are exchanged, the switched filtering nets can continue to intercept
plant residues, the
downtime of the device is shortened, in the rotating process of the
rotating disc, a series of transmission structures are used, and the device is convenient to operate. The filter screen is driven to turn over by 180 degrees,
plant residues intercepted on the surface of the filter screen automatically fall into the
sewage tank under the action of gravity, meanwhile, the filter screen is flushed through cooperation with the high-pressure spray head, the self-cleaning purpose of the filter screen is achieved, and the labor intensity of manual cleaning of operators is remarkably relieved.