Industrial coal dust burning boiler system

The invention discloses an industrial coal dust burning boiler system. The system comprises a fuel supply system, a boiler body, a water supply and treatment system and a gas cleaning system, wherein the boiler body comprises a coal dust burner and a D-shaped furnace; the coal dust burner is arranged on a fuel inlet of the D-shaped furnace in a sealing way and is communicated with a fuel supply system through a primary air supply pipe; and the water supply and treatment system and the gas cleaning system are communicated with the D-shaped furnace respectively. The system of the invention is simple, has low equipment investment and operating cost, and can ensure that coal dust can be stably burn, is not easy to slag, and has high burn-off rate; and the system can effectively reduce the discharge of nitric oxides of the system and the discharge of pollutants.