Device and method for preparing hot fuel gas for glass kiln with anthracite

The invention relates to the field of coal gas and particularly relates to a device and a method for preparing a hot fuel gas for a glass kiln with anthracite. The method in the adopted technical scheme comprises the following steps: adding the anthracite with the grain size of 6-50 mm into a material supply lock hopper from a material coal bin, then entering a gasifier, mixing oxygen and steam from an oxygen generating plant, enabling the oxygen and the steam to enter from the bottom part of the gasifier and exchange heat with an ash layer at the lower part, enabling the oxygen to produce a strong redox reaction with a coal layer at the middle part, exchanging heat with the coal layer at the upper part, producing the hot fuel gas, enabling the hot fuel gas to flow out from the upper part of the gasifier, removing large-particle coal ash impurities in a cyclone separator, then entering a dry type dust collector, removing dust from the fuel gas, regulating the pressure to the required range, and feeding the fu