The bulk coal gasified burner of the utility model belongs to the field of boilers, and is the boiler which changes bulk coal into coal gas to be burned. The utility model aims for solving the problems of the environmental protection and the energy-saving of the boiler. The utility model is characterized in that the utility model is composed of a coal gas generating chamber, a burning chamber, a lower arch, a two-way arch, a fire blocking arch, an upper arch, a sedimentation chamber, a circumambient flue which is composed of a bend water pipe, a smoke box, and a boiler shell, etc. A fire separating wall and a fire blocking wall are arranged in the circumambient flue. An operation process is not only a burning process, but also a dust removing and purge process. The environmental protection index of the bulk coal gasified burner conforms to the requirement of national standards. The utility model is ideal heat supply equipment for enterprises and units. Compared with an oil-burning boiler and taking a l t / h boiler for example, and the utility model saves more than RMB 0.4 million fuel cost per year.