Multi-layer, multi-stage solid state continuous fermentation apparatus

The utility model relates to a multilayer and multistage solid continuous fermentation device which comprises a box body, a feeding device, a material distribution device, material bearing devices and a discharge hopper, wherein one to ten layers of material bearing devices dividing the box body into multiple layers of fermentation rooms are horizontally installed in the box body, one to ten vertical baffle plates dividing each layer of fermentation room into multistage fermentation rooms are fixedly installed at intervals on the surface of each layer of material bearing device, and each material bearing device comprises a fixed material bearing plate and a withdrawing material bearing plate; and the fixed material bearing plate is fixedly installed in the box body and is provided with spaced discharge openings, and the withdrawing material bearing plate is installed on the lower bottom face of the fixed material bearing plate in a sliding way and is provided with openings corresponding to the discharge openings. The utility model has scientific and reasonable structural design, the multilayer and multistage fermentation rooms are arranged in the box body of the fermentation device, the multilayer material bearing devices satisfy the technological requirement on continuous and large batch fermentation, and the utility model has the advantages of high degree of automation, convenient use, high durability, low cost and energy consumption, and the like.