Dust-free cutting device for dedusting cloth

The utility model relates to the technical field of dedusting cloth processing accessory devices, in particular to a dedusting cloth dust-free cutting device which is simple in structure, reduces theworkload of a user, facilitates storage of a cutter and reduces use limitation. The device comprises a workbench and four sets of magnets, handles are arranged at the top ends of the four sets of magnets, the four sets of magnets are attracted to the workbench, and a groove is formed in the top of the workbench; the device further comprises a threaded rod, a fixed rod, a movable block, a cutter, two sets of bolts and two sets of nuts. A left supporting rod and a right supporting rod are arranged at the top of the workbench. Upper bearings are arranged on the left supporting rod and the right supporting rod; a left rotating shaft and a right rotating shaft in interference fit with the two groups of upper bearings are respectively arranged at the left end and the right end of the threaded rod; the moving block is pr