Low dust sand blasting machine

The utility model discloses a low dust sand blasting machine, it includes storage tank, agitating unit, sand valve, air -vent valve, three -way valve, relief valve, sand discharge pipe and support, storage fangs dress is on the support, agitating unit's motor cabinet detachably installs on the pan feeding mouth, and the motor is installed on the motor cabinet, and puddler one end is connected on the motor, the stirring rake is installed on the puddler other end, compressed air source and three -way valve are connected respectively to the air -vent valve, the three -way valve still leads to the upper portion of storage tank respectively and the inlet end of sand valve is connected, the feed end of sand valve passes through the bin outlet intercommunication of pipeline bottom the storage tank, the relief valve is installed on storage tank upper portion, sand discharge pipe one end is connected with sand valve discharge end, and the other end is connected with the spray gun. The utility model discloses operation