Concrete additive raw material drying device

The utility model relates to a concrete additive raw material drying device, in particular to the technical field of concrete additive production equipment. The device comprises a drying box, a feeding port, a first rotating shaft, a T-shaped stirring rod, a scattering rod, a driving motor, a second rotating shaft, a fan, an air heater, an air inlet pipe, a screen, a grid conveying belt and a vibrating mechanism, the second rotating shaft is of a hollow structure, exhaust holes are evenly distributed in the second rotating shaft, and the vibrating mechanism is arranged on the inner wall of the bottom of the drying box; and the top of the vibrating mechanism is tightly attached to the bottom of the upper portion in the grid conveying belt, a second discharging opening is formed in the middle of the bottom of the drying box, and supporting legs are arranged on the outer wall of the bottom of the drying box. And the drying speed is increased, raw material screening is achieved while drying is conducted, and the