The utility model discloses a sweep high -efficient dust removal dust filter who inhales formula motor sweeper, its characteristics are, by sweeping the system of inhaling, tertiary filtration system and dust collector export system composition, it comprises main brush (1) and dust collection box (2) to sweep the system of inhaling, tertiary filtration system is by filter screen (8), cyclone prefiltering wind channel (3) and candle filter (4) constitution, dust collector export system includes that induced air way (6), dust collector export (7) and vacuum fan (5) down, filter the wind channel shape through setting up tertiary filtration system with improving, improve whirl flow and centrifugal force among the dirty gas filter process, improve motor sweeper dust collector's dust collection efficiency and life, experimental and simulation and analysis shows that the dirty gas who gets into cyclone prefiltering wind channel reaches 98% to the gravel seizure sedimentation rate that the particle diameter is 0.1~1.5mm.