Gasification device for ash smelting fluidized bed

The utility model relates to a gasification device for an ash smelting fluidized bed, which is composed of the gasification unit of a fluidized bed, an ash smelting and separating unit, a flyash circulation unit, and a waste heat recovery unit. The utility model is characterized in that the traditional ash smelting and separating unit removes venturi throats with complicated structures and difficult manufacture. A vertical separation pipe is directly connected with a conic reducing pipe. The device simultaneously realizes the viscosity breaking of coal, devolatilization, vaporization, and the gather and separation of the ash and has strong adaptability for the coal; the desulfurization can be carried out inside a furnace. The device has easy production and simple operation.