Ash tower capable of rapidly unloading coal

The utility model provides an ash tower capable of rapidly unloading coal, and belongs to the technical field of environmental protection equipment. The problem that an existing ash tower is poor in adaptability during ash discharging is solved. The ash tower comprises a shell with an inner cavity, a funnel-shaped gathering part is arranged at the lower end of the shell, a linear pipeline is connected to the lowest position of the gathering part, a rotating shaft penetrates through the side portion of the pipeline, a disc-shaped sealing block is fixed to the position, located on the rotating shaft, in the pipeline, and the outer diameter of the sealing block is the same as the inner diameter of the pipeline. And a motor capable of driving the rotating shaft to rotate is fixed on the pipeline. The rotating shaft can drive the sealing block to rotate, so that channels on the two sides of the sealing block become smaller, the flow of coal ash becomes smaller, then the pipeline is finally closed along with gradua