PURPOSE: To provide an electric cleaning machine wherewith dust can be sucked while pressurized air is blowing through nozzles provided at suction openings on an attachment and/or on a pipe.

CONSTITUTION: The machine is so composed that a dust-sucking opening part 3 is provided on the suction side of a casing 1 in which a filter 4, an air-blasting machine 5 (compressor), a duct for passing pressurized air and a two way type flow control valve 8 are incorporated in that order from the suction side, that a taking-out opening part 9 for part or all of the air controlled with the two way type flow control valve 8 is provided in the casing and that a taking-out pipe 12 connected with the taking-out opening part 9 is provided. An auxiliary pressurizer may be provided between the two way flow control valve 8 and the taking-out opening part 9. Furthermore, pressurized air-blowing nozzles 319, 322 each are provided at suction openings 318 on an attachment 300 and/or on a pipe 323 for an electric cleaning machine, by which the pressurized air can be supplied.