The invention discloses a heavy organic matter pyrolyzing reaction kettle and a pyrolyzing device. The pyrolyzing reaction kettle comprises a kettle body, a liquid connecting pipe is connected to the kettle body, one end of the liquid connecting pipe stretches into the bottom of the kettle, and a filtering device used for solid and liquid separation is arranged on the liquid collecting pipe. When the pyrolyzing reaction kettle is used, liquid in the kettle body in a hot state is filtered with the filtering device on the liquid collecting pipe and then discharged out of the pyrolyzing reaction kettle under the action of pressure in the kettle, and thus hot state separation of the liquid in the kettle and solids is achieved. Due to the gravity action, the solid matter falls to the bottom of the kettle, so that the filtering device is not likely to be blocked, and filtering precision is high. The filtering device and a solid and liquid separating pipe are detachably connected, only the filtering device needs to be replaced when blocking occurs, and then the filtering device is cleaned for use. The heavy organic matter pyrolyzing device is a set device integrating multiple technological elements of heat depolymerization, heat extraction, heat lixiviation and fractionation, the pyrolyzing reaction kettle integrates the functions of heat depolymerization, heat extraction and heat lixiviation, and thus the heavy organic matter pyrolyzing reaction kettle and the pyrolyzing device are convenient to use.