Handheld sanding machine with dust collection device

The utility model belongs to the technical field of sanders, and particularly relates to a handheld sander with a dust collection device, which comprises a sander body and a dust collection mechanism, and the dust collection mechanism is arranged at the sanding end of the sander body. The sander body comprises a handle provided with a mounting cavity, a driving motor arranged in the mounting cavity and a driving shaft connected with the driving end of the driving motor, one end of the driving shaft is arranged in the mounting cavity, and the other end of the driving shaft extends to the outer side of the handle to be connected with the sanding wheel. A plurality of adsorption holes are formed in the side, close to the sanding wheel, of the handle, and the dust collection mechanism is connected with the adsorption holes and used for adsorbing dust. The sanding wheel is in contact with the epoxy resin plate for sanding, and a lot of produced epoxy resin dust is sucked away by the dust suction mechanism through