The portable abrasive blaster are safe, high productivity systems designed for use with a wide range of abrasive media. The operation is performed on metals, glass, ceramics, plastic and stone. The machine works on pressure blasting principle, consist of a blast generator. The abrasives are filled at the top of machine when machine is not working and blast generator is not pressurized. At the top, a vibrating sieve is provided to sieve the abrasive filled. The oversize abrasive and debris are retained on the screen, thus prevent the choking of blast line. When mushroom valve is opened the abrasive will get transferred to blast generator for blasting. The mushroom valve gets closed when compressed air is switched on and abrasive storage tank gets pressurized, for free fall of abrasive into the mixing tube. From mixing tube the abrasive is carried away by compressed air to the nozzle for blasting. The Blast Generator is fabricated from MS Steel plate of thickness not less than 6 mm as per IS-2825 and hydraulically tested for 250 psi.