Coke oven gas fine desulfurization tower and automatic discharging device

The invention belongs to the technical field of coal gas desulfurization, and discloses a coke oven gas fine desulfurization tower and an automatic discharging device, the coke oven gas fine desulfurization tower comprises an upper box body and a lower box body, a purification box is movably sleeved with the upper box body, a partition plate is fixedly mounted in the purification box, and a top block is rotatably mounted at the top of the purification box; a rotating plate is fixedly mounted on the outer surface of the top block, a vertical shaft is fixedly mounted at the bottom end of the top block, the bottom end of the vertical shaft penetrates through the purification box, the outer surface of the vertical shaft is fixedly sleeved with a bottom plate, leakage holes are formed in the bottom plate, and a first gear is fixedly mounted at the bottom end of the vertical shaft. By arranging the top block, the vertical shaft, the bottom plate and the leaking holes, compared with a traditional device, the device