Efficient energy saving coal powder combusting system

The invention discloses an efficient energy saving coal powder combusting system. The system comprises a coal storing bucket, a coal grinding device, a mechanical spiral quantifying device, a combustor, a rear cyclone separator, a homogenizing furnace, an evaporator, a forced desulfurizer, a wet process dust collector and a chimney, wherein the coal grinding device for improving the fineness of coal particles is arranged at one side of the coal storing bucket, the mechanical spiral quantifying device for removing crystal water and external water in the coal particles is arranged at one side ofthe coal grinding device, the combustor is arranged at one side of the mechanical spiral quantifying device, the rear cyclone separator is arranged at one side of the combustor, the homogenizing furnace is arranged at one side of the rear cyclone separator, the evaporator is arranged at one side of the homogenizing furnace, the forced desulfurizer and the wet process dust collector are arranged at one side of the evapora