Hearth structure for incinerator

The present invention relates to a hearth structure of a combustion furnace, and comprises an upper hearth platfond and a lower hearth platfond, wherein, the lower hearth platfond is provided with a lower hearth front radiation heat-receiving pipe (1) and a rear radiation heat-receiving pipe (4); the radiation heat-receiving pipes of the three parts are connected with each other through a connection pipe (2) and are arranged into a closed curtain to form a circuit; both sides of the heat-receiving pipe are arranged on the wall of the furnace, and heat conducting oil flows inside the heat-receiving pipes. The hearth structure of the present invention has the advantages that the fact that the organic heat carrier furnace is required to be configured in the processing and production process of the timber is adopted, a part of the organic heat carrier pipelines of the organic heat carrier furnace is transferred to the top part of the combustion furnace, so that not only the top part of the combustion furnace is p