Multi-layer micropore sieving structure

The utility model relates to the technical field of microecological preparation production screening, in particular to a multilayer micropore screening structure which comprises a fixing base, a first screening plate arranged on the upper surface of the fixing base, a first inserting plate arranged in a first inserting groove, a first connecting and guiding plate arranged on the right end face of the first screening plate, and a vibration motor arranged on the lower surface of the fixing base and close to the left end. The circumferential outer wall of the limiting column is sleeved with a first spring, a supporting block is arranged below the limiting column, and a second screen plate is arranged above the first screen plate. According to the multi-layer micropore sieving structure, a first sieve plate is arranged, a detachable first inserting plate is connected to the first sieve plate in an inserted mode, the first sieve plate is installed on a fixing base with a vibration motor, the fixing base is connect