Device (10) for dedusting media, consisting of a cover which closes a storage receptacle (2) of said media after dedusting, said cover being provided with a hopper for supplying the media to be dusted (6) communicating with the receptacle storage (2) by means of a through slot of substantially linear shape, and comprising at its lower face a deflector, capable of directing an air flow directly above said light in a direction intersecting the flow of media passing by gravity through the through-lumen, said deflector receiving part at least of said air flow loaded with dust mixed with the media and communicating with the outside of the device via an evacuation nozzle. Figure 2
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