Multi-arch-bridge lime shaft kiln

The invention discloses a multi-arch-bridge lime shaft kiln which comprises a shaft kiln body, a stock bin is installed at the top end of the shaft kiln body, a feeding hopper is installed at the top end of the stock bin, a smoke exhaust beam is installed at the top end of an inner cavity of the shaft kiln body, and roasting arches are installed at the top end of the inner cavity of the shaft kiln body. A hot air exhaust arch is installed in the center of an inner cavity of the shaft kiln body, and a cooling air inlet arch is installed at the bottom end of the inner cavity of the shaft kiln body. According to the multi-arch-bridge lime shaft kiln, the kiln type of the novel shaft kiln with the multi-arch material distribution beams is adopted, decomposed raw materials are placed in the space in the kiln, two inner walls of the shaft kiln are connected through the multiple layers of material distribution arches, and the shaft kiln is simple in structure and can be formed into a multi-chamber annular combinatio