Wet dust filtering system equipped with soundproofed fan, tank with float, front panel with plexiglass cover for inspection of the starting spray. Simple and safe vacuum operation that guarantees constant results over time. The sucked air passes through a vertical labyrinth to immerse itself several times in the water contained in the tank located below, generating some vortices and nebulizations that force the suspended particles to precipitate before reaching the fan impeller and then reaching the exhaust pipe. The water in the tank is kept at a constant level by a float in a tank connected directly to the water system. The electrical system is located inside a watertight metal box.