Sealing structure of dry distillation kettle for high-temperature carbonization

The invention discloses a sealing structure of a dry distillation kettle for high-temperature carbonization. The sealing structure comprises a kettle body and a kettle cover, wherein a flange is arranged in a position, contacting with the kettle cover, of the kettle body; an annular groove is formed in the flange; an annular bulge is arranged at a contact position of the kettle cover and the kettle body; a filling layer formed by filling high-temperature-resistant sealing mediums is arranged in the annular groove; the filling layer is tightly pressed by the annular bulge so as to be matched with the annular groove; and a fixing structure is arranged between the kettle cover and the kettle body. The sealing structure is simple, low in cost and excellent in sealing performance at the same time, and is used for solving the problem of the sealing performance of the dry distillation kettle. Thus, the carbon yield is increased; the leakage of flue gas is avoided; the flue gas can be completely used for combustion.