Filtering device and air compressor assembly

The invention discloses a filtering device and an air compressor assembly, and the filtering device comprises a mounting base body which is provided with a through hole; the first end of the filter cylinder abuts against the mounting base body, and the interior of the filter cylinder communicates with the through hole; the connecting assembly comprises a plurality of connecting rods which are arranged at intervals in the circumferential direction of the filter cartridge, the first end of each connecting rod is connected with the mounting base body, and the second end of each connecting rod is provided with a first clamping part; the limiting body abuts against the second end of the filter cartridge, a plurality of via holes distributed in the circumferential direction of the filter cartridge at intervals are formed in the limiting body, and the second ends of the multiple connecting rods penetrate through the multiple through holes in a one-to-one correspondence mode; the clamping piece is arranged on the sid