A powder-cleaning device (1) for dental use, comprising a proximal arm (2) configured for attachment to a source of compressed air； a distal arm (3) having a distal end (30) configured for dispensing a mixture of air and powder to a patient； a turbulence chamber (4), which has a loading side door (40) configured for insertion of an abrasive powder into the chamber itself according to a loading direction substantially orthogonal to a plane defined by the prevailing extension s of said arms (DP, DD), which turbulence chamber (4) is interposed between said proximal arm (2) and said distal arm (3) and in fluid communication with both in such a way that the compressed air can be adducted in the turbulence chamber through said proximal arm (2) and a mixture of air and powder can escape therefrom within said distal arm (3)； a controller (10) for compressed air flow, arranged on said proximal arm (2) upstream of said turbulence chamber (4).
