Environment-friendly type coal-fired furnace

An environment-friendly type coal-fired furnace is used to overcome the insufficient combustion and overproof of waste gas discharge of the prior coal-fired furnace, which comprises a furnace body, a hearth, a furnace row, a coal feeding opening, an ash discharge opening and a smoke discharge apparatus. The utility model is characterized in that a combustion chamber is arranged in the furnace body on one side of the hearth to communicate with the hearth. The furnace row and a lighting door are arranged under the combustion chamber. An ash storage chamber is arranged beneath the furnace row. A coal storage hopper is arranged above the combustion chamber to communicate with the combustion chamber. An air discharge pipe is arranged in the hearth to assist combustion. The coal is first combusted in the combustion chamber and generates dry coal gas, furthermore, the dry coal gas enters the heart for complete combustion, thereby completely combusting the coal. The waste discharge reaches a class of standard. The carbon content of the cinder is lower, therefore, the coal saving effect is obvious. The utility model can be widely used in fields of coal-fired boiler and train coal-fired boiling water furnace.