Sand blasting machine for plate surface treatment

The utility model discloses a sand blasting machine for plate surface treatment. The sand blasting machine comprises a shell, a control box, a vertical conveying mechanism, a sand blasting mechanism and a filtering and collecting mechanism, the sand blasting mechanism comprises two sand blasting units and a lifting adjusting unit. According to the sand blasting machine for plate surface treatment, vertical longitudinal conveying of plates can be achieved through the vertical conveying mechanism, so that opposite sand blasting of the left sand blasting unit and the right sand blasting unit is facilitated, sand blasting of the surfaces of the plates is completed at a time, too much sand cannot stay on the surfaces of the plates, and sand recycling is facilitated; the sand blasting height of the two sand blasting units can be adjusted up and down by utilizing the lifting adjusting unit, so that the vertical side surface of the plate is subjected to vertical line-by-line sand blasting, and the requirement of larg