The invention discloses a dust removal device for sales of instruments and apparatuses. The dust removal device comprises a dust removal device body, an air blower is fixed at the position of the inner top end of the dust removal device body, a third instrument placement device is welded on one side, where the air blower is located, of the interior of the dust removal device body, two first instrument placement devices are welded to the positions, located below the third instrument placement device, of the interior of the dust removal device body, and a second instrument placement device is welded to the position, located between the two first instrument placement devices, of the interior of the dust removal device body. In the dust removal device, the first instrument placement devices, the second instrument placement device and the third instrument placement device are fixed inside the dust removal device body, therefore, the plurality of instruments and apparatuses can be placed atthe same time, and then the working efficiency is improved; and moreover, one ends of the first instrument placement devices, one end of the second instrument placement device and one end of the thirdinstrument placement device are of turnover structures, so that the effect of guiding air is achieved, and the dust removal effect is improved.