AIR BLOW DEVICE

PROBLEM TO BE SOLVED: To provide an air blow device for improving sanitation of a work area of a worker, by easily removing powdered paint stuck to a magnet sheet for masking.SOLUTION: A box 2 has a sealed space 2a inside, and an input port 23 is formed on an upper surface, and an exhaust port 24 is formed on an under surface. A cylinder member 5 is arranged in the sealed space 2a, and an upper end opening is connected to the input port 23, and a lower end opening is connected to the exhaust port 24. A mesh part 51 is formed in a lower end part of the cylinder member 5. Three discharge nozzles 6 are vertically alternately arranged at an interval on both sides for sandwiching the cylinder center line of the cylinder member 5, and air is discharged in the direction crossing the cylinder center line inside the cylinder member 5. An exhaust system 8 is provided for exhausting the air of the sealed space 2a. A control board 9 discharges the air for a predetermined time from the respective discharge nozzles 6 to a magnet sheet 10 freely falling inside the cylinder member 5 inputted from the input port 23, and exhausts the powdered paint flying high up in the sealed space 2a from the mesh part 51, from an exhaust port 8a.