Coal smashing device of thermal power plant

The invention discloses a coal smashing device of a thermal power plant. The coal smashing device comprises a smashing part located on the upper portion of the device, and a feeding hopper is arrangedat the top end of the smashing part. A first screening mechanism for extracting large coal blocks and a second screening mechanism for separating powdery coal blocks are sequentially arranged on thelower portion of the smashing part. A powder removal mechanism for removing powder coal on the surface of the coal blocks is arranged on a discharging port corresponding to the second screening mechanism. According to the coal smashing device, a convex guide plate of an arc-shaped structure is arranged on the upper portion of the inner side of a separating chamber, so that the coal blocks fallinginto the separating chamber are scattered to the edge of the separating chamber, a first stirring impeller constantly rotates and stirs, the powder coal and the small coal blocks pass through a net structure below the separatin