Garbage pyrolysis gasifier and garbage treatment system

The utility model provides a garbage pyrolysis gasification furnace and a garbage treatment system, and relates to the technical field of solid waste treatment and recycling. The garbage pyrolysis gasification furnace comprises a furnace body and a secondary combustion chamber, a smoke exhaust pipe is arranged in the furnace body; wherein the furnace body comprises a drying pyrolysis chamber, a gasification chamber and a combustion chamber which are sequentially communicated from top to bottom, the secondary combustion chamber is arranged outside the drying pyrolysis chamber in a sleeving manner and is communicated with the gasification chamber, a gas guide unit is arranged in the drying pyrolysis chamber, and the smoke exhaust pipe is communicated with the secondary combustion chamber through the gas guide unit. Organic matters in garbage are converted into available energy, the energy utilization rate is high, the content of pollutants such as heavy metals and dioxin is low, the equipment investment and the