SZS series of coke oven (blast furnace)coal gas boiler is designed elaborately by the RD personal responding to national call of energy saving.such boiler characteristic is double drum and water tube.the main fuel is blast furnace gas emissions from steel mills and coke oven gas plant.it can reduce the emission of polluting gases,also use waste,and produce the necessary high-quality steam through fully combustion emissions. the effect of this furnace is significantly in energy-saving and reducing emissions,and can be widely used in the future.