NOVELTY - Device for integrating biogas production with desulfuration comprises a biogas production device and a biogas desulfuration device, where the biogas production device comprises a biogas production zone and a three-phase separation zone, and the biogas desulfuration device comprises an elementary sulfur separation zone and a biogas desulfuration zone. The bottom of the biogas production zone is provided with a sludge discharge pipe (1). The wall of a reaction cylinder (3) is provided with a water inlet pipe (2), a sampling pipe (4) and a refluxing pipe (5) from bottom to top.    USE - The device is useful for removing hydrogen sulfide from gas phase.    ADVANTAGE - The device promotes the release of hydrogen sulfide in liquid phase.    DETAILED DESCRIPTION - Device for integrating biogas production with desulfuration comprises a biogas production device and a biogas desulfuration device, where the biogas production device comprises a biogas production zone and a three-phase separation zone, and the biogas desulfuration device comprises an elementary sulfur separation zone and a biogas desulfuration zone. The bottom of the biogas production zone is provided with a sludge discharge pipe (1). The wall of a reaction cylinder (3) is provided with a water inlet pipe (2), a sampling pipe (4) and a refluxing pipe (5) from bottom to top. The internal part of the three-phase separation zone is provided with a sludge precipitation chamber, an inverted hopper-shaped three-phase separator and a first gas chamber from bottom to top. The outer side of the cylinder wall of the three-phase separation zone is equipped with an overflow discharge pipe and a spray liquid refluxing pipe. The internal part of the elementary sulfur separation zone is equipped with a slant plate-type spray liquid storage tank longitudinally provided with an air input pipe, a biogas input pipe and a tapered air distributor. The center of the slant plate is provided with a spray liquid level pipe. A second gas chamber is arranged above the slant plate-type spray liquid storage tank. The outer side of the cylinder wall of the elementary sulfur separation zone is provided with a gas monitoring and sampling pipe and sulfur discharge pipe. The main unit of the biogas desulfuration zone comprises a desulfuration cylinder, whose internal part is equipped with a biological filler, a disc-shaped spray head and a third gas chamber. The cylinder wall of the desulfuration cylinder is provided with a biogas output pipe. The disc-shaped spray head is connected with an outer circulating spray pump by a conveying pipe.    DESCRIPTION OF DRAWING(S) - The figure shows schematic representation of device integrating biogas production with desulfuration.    Sludge discharge pipe (1)    water inlet pipe (2)    Wall of a reaction cylinder (3)    Sampling pipe (4)    Refluxing pipe (5)