Device for removing dust and rubbish

Device for removing dust and rubbish from a surface, comprising a casing provided with a suction opening, a rotating brush, a turbine operationally connected to said brush, a suction nozzle having a predefined flow cross-section, and a suction pipe connected to a suction device, said rotating brush having a shaft rotatably supported in a first housing of said casing, said turbine having a shaft rotatably supported in a second housing of said casing, said suction nozzle being located between said rotating brush and said turbine for sucking an air flow from said suction opening, direct it onto said rotating brush and then towards said turbine, characterized in that said device also includes at least a bypass duct and first valve means, said at least a bypass duct having a predefined flow cross-section and being designed for bypassing said second housing and said turbine, and connecting said suction opening and said first housing with said suction pipe and said suction device, said first valve means being able to engage with said suction nozzle and with said at least a bypass duct for closing said suction nozzle and opening said at least a bypass duct.