Garbage plasma gasification furnace taking water vapor as gasification medium

The garbage plasma gasification furnace comprises a bottom plate, a steam box is fixedly installed on one side of the upper end of the bottom plate, a gasification cylinder is fixedly installed at the upper end of the steam box, vent holes are evenly formed in the periphery of the lower end of the gasification cylinder, and a feeding pipe is fixedly installed at the upper end of the gasification cylinder; the feeding pipe is communicated with the interior of the gasification cylinder, a slag discharging opening is formed in the lower end of the gasification cylinder, plasma torches are evenly and fixedly installed on the periphery of the steam box, a steam generator is fixedly installed in the middle of the upper end of the bottom plate, a preheating box is fixedly installed on the other side of the upper end of the bottom plate, and the preheating box is communicated with the steam box through the steam generator. According to the garbage gasification device, the contact between garbage and high-temperature