Electric dust collector

The utility model provides an electric dust collector which is convenient, simple and small as well as has few components. The utility model comprising: an electric fan(2) generated the dust sucking airflow; a dust collecting device(6), which catches and collects the dust suck by the electric fan(2); a dust collecting device cover(4) which covers the dust collecting device(6) and can be rotated freely. As the handle part(7) is incorporated with the dust collecting device cover(4), just grapping the handle part(7) can move the dust collector machine without any other moves; therefore, the utility model is really convenient, and the time for moulding or mounting is reduced; the cost is also reduced.