The invention discloses a pyrolyzation, gasification and carbonization device for producing reclaimed oil by utilizing waste. The pyrolyzation, gasification and carbonization device comprises a supplysystem, a pretreatment system, a pyrolyzation and carbonization device, a combustion and gasification device, a residual heat recycling system, a carbon recovery system and a reclaimed oil preparation and collection system, wherein the supply system, the pretreatment system, the pyrolyzation and carbonization device, the combustion and gasification device, the residual heat recycling system, thecarbon recovery system and the reclaimed oil preparation and collection system are mutually connected; the reclaimed oil preparation and collection system comprises a quick cooling tower, a reclaimedoil condenser, a reclaimed oil purification tower and a reclaimed oil storage box; the quick cooling tower is communicated with the pyrolyzation and carbonization device; the quick cooling tower is inside communicated with the reclaimed oil condenser; the reclaimed oil condenser and the quick cooling tower are both communicated with the reclaimed oil storage box; the reclaimed oil condenser is communicated with the reclaimed oil purification tower; the purification tower is communicated with the combustion and gasification device and the reclaimed oil storage box. The pyrolyzation, gasification and carbonization device for producing the reclaimed oil by utilizing the waste, which is provided by the invention, is simple in structure, is used for preparing the reclaimed oil by sufficiently utilizing a discarded tire and agricultural waste, is used for effectively decreasing the water content of the waste and circularly utilizing generated heat once again, is used for saving energy, and is used for avoiding ignition and an explosion.