Coal as Fuel Combustion

The invention provides a coal combustion improver which comprises 5 to 10 percent of dispersing agent, 5 to 10 percent of penetrant, 35 to 50 percent of oxidizing agent, 35 to 50 percent of catalyst and 5 to 10 percent of emulsifying agent, wherein the oxidizing agent is a mixture of nitrophenol and methyl tertiary butyl ether; and the catalyst is nano-scale metallic oxide. The coal combustion improver provided by the invention has high combustion improving efficiency and is safe and environmental-friendly. The invention also provides a method for preparing the coal combustion improver.