Dry method high-efficiency material mixing device

The present invention relates to a material mixing device and provides a dry-method high-efficiency material mixing device. The dry-method high-efficiency material mixing device is simple in structure, widens critical rotation speed adapting ranges of a cylinder body, is uniform in material mixing, and improves uniformity of granular materials and material mixing efficiency. The dry-method high-efficiency material mixing device solves technical problems that in the prior art, material mixing devices are high in cost, low in material mixing efficiency, poor in material mixing uniformity, etc. The dry-method high-efficiency material mixing device comprises a cylinder body and a horizontal rotating shaft coaxially inserted in the cylinder body; the cross section of the cylinder body presentsequilateral polygon; a plurality of sets of stirring bodies are distributed on the corresponding horizontal rotating shaft in the cylinder body along a longitudinal direction; the horizontal rotatingshaft drives the stirring