The invention discloses a vinyl resin blanking device. The vinyl resin blanking device comprises a hopper and a material disc, wherein a hopper bracket is fixed at the lower end of the hopper; a filtering screen is arranged at the upper end of the hopper; a plurality of positioning bumps are integrally arranged at the upper end of an inner wall surface of the hopper; a slot is formed in the upper end of each positioning bump; a plurality of inserting blocks, which are matched with slots, are integrally arranged at the edge position of the bottom surface of the filtering screen; a discharging hole is formed in the lower end of the hopper; the discharging hole is in thread connection with a resin blanking pipe; a resin cooling tank is arranged at the lower end of the resin blanking pipe; the resin cooling tank comprises an inner shell body and an outer shell body; a water cooling cavity is formed between the inner shell body and the outer shell body; the material disc is mounted below the resin cooling tank; a plurality of resin conveying pipes are arranged between the material disc and the resin cooling tank. The vinyl resin blanking device disclosed by the invention is reasonable in structural design, simple in structure, good in impurity filtering effect, rapid in filtering speed, convenient for impurity cleaning and high cooling efficiency.