The invention provides a rotary controllable pyrolysis and carbonization kiln. The rotary controllable pyrolysis and carbonization kiln comprises a kiln body, a feeding operation platform and a discharging operation platform. The rotary controllable pyrolysis and carbonization kiln is characterized in that the feeding operation platform is connected with an air-lock feeding device which can prevent external gas from entering a feeding chamber, the air-lock feeding device is connected with the kiln body through a feeding cover mounted on the surface of the feeding chamber, an air-lock water-cooling discharging device which can cool materials is mounted on the tail of the kiln body, and the air-lock water-cooling discharging device is connected with the discharging operation platform through a discharging cover mounted at the top; an oxygen control mechanism which is used for supplying oxygen required for gas combustion into a furnace and can achieve recirculation through smoke is arranged between the feeding cover, the discharging cover and the kiln body; the design of an automatic control system is adopted, so that the labor intensity is low, and modern civilized production is reflected; and after the system operates normally, waste heat can be guided into a steam boiler or a hot water boiler outside the system to be used as heat energy, low investment, low cost, high efficiency, energy saving and environmentally friendliness are achieved, and the purpose of developing and utilizing green pollution-free energy resources is realized.