Method for treating organic waste through combination of anaerobic pyrolysis and oxygen-deficient gasification

The invention belongs to the technical field of pollutant treatment, and particularly relates to a method for treating organic waste through combination of anaerobic pyrolysis and oxygen-deficient gasification. The method comprises the following steps of: (1) anaerobic pyrolysis: performing anaerobic pyrolysis on organic wastes in an anaerobic space to obtain a solid pyrolysis product and a gaseous pyrolysis product, and leading the gaseous pyrolysis product out of the anaerobic space; and (2) oxygen-deficient gasification: leading the solid pyrolysis product out of the anaerobic space to an independent gasification space, introducing a gasification medium into the gasification space to enable the gasification space to be in an oxygen-deficient state, carrying out gasification reaction on residual organic matters in the solid pyrolysis product in the gasification space, and leading combustible gas generated by the gasification reaction out of the gasification space. Most organic matters can be treated in the