Welding bench

The utility model discloses a welding bench, its technical essential is: including a supporting bench and a suction line, suction line's one end is equipped with the air intake, be equipped with on the lateral wall if the unwatering pumping wind gap, be connected with the air exhauster on the air intake, be connected with air pipe on the suction opening, even air pipe is equipped with air adjusting device, air adjusting device includes stay tube and first baffle and second baffle, first baffle and second baffle are semi -circle baffle, first baffle fixed mounting is in the stay tube, make thelower extreme of stay tube be semicircular opening, the second baffle rotates installs the downside port at the stay tube, be equipped with the swivel becket between second baffle and the stay tube, second baffle and swivel becket fixed mounting, be equipped with on the stay tube and rotate the groove with the swivel becket complex, be equipped with and rotate the logical groove of groove intercommunication on the lateral