Blending device for high-quality road petroleum asphalt material

The invention provides a blending device of a high-quality road petroleum asphalt material, which comprises a primary mixing tank and a concentrating tank for mixing and stirring materials, a cylinder is vertically mounted on the central axis in the concentrating tank, the bottom end of the cylinder is fixed on the inner bottom of the concentrating tank, and a plurality of feeding holes are formed in the side wall of the bottom end of the cylinder; a spiral blade is also coaxially arranged in the cylinder; a drainage cover is further integrally arranged at the top end opening of the cylinder, a rotary cutting component is rotatably installed on the outer wall of the cylinder below the end edge, and the asphalt mixture can make contact with a rotary cutter in rotation and be thrown out of an arc-shaped strip hole formed in the side wall of the concentration tank after falling down through the end edge. The upper side and the lower side of the outer side hole edge of the arc-shaped strip hole are each fixedly p