NOVELTY - Improved biogas desulfurizer comprises a desulfurizing column, where one side of the desulfurizing column is connected to a pressure gauge, and the other side is provided with a gas inlet connected with a gas intake pipe which is equipped with a stainless steel mesh inside. The gas intake pipe has a water accumulation part beside the gas inlet, and a desulfurizing pipe is arranged between the gas inlet and the gas intake pipe. The desulfurizing pipe is horizontally extended into the desulfurizing column, and the internal part of the desulfurizing column has a desulfurizing layer.    USE - Used as a improved biogas desulfurizer.    ADVANTAGE - The desulfurizer: is installed with multiple small holes on the desulfurizing pipe to sufficiently contact with a desulfurizing agent so as to achieve large gas output, and immerses the moisture in the gas to the bottom of the desulfurizing pipe without affecting the contact of the gas; is simple and economical; and has clear desulfurizing effect of biogas, natural gas and coal gas.    DETAILED DESCRIPTION - Improved biogas desulfurizer comprises a desulfurizing column, where one side of the desulfurizing column is connected to a pressure gauge, and the other side is provided with a gas inlet connected with a gas intake pipe which is equipped with a stainless steel mesh inside. The gas intake pipe has a water accumulation part beside the gas inlet, and a desulfurizing pipe is arranged between the gas inlet and the gas intake pipe. The desulfurizing pipe is horizontally extended into the desulfurizing column, and the internal part of the desulfurizing column on the desulfurizing pipe has a desulfurizing layer. The upper part of the desulfurizing layer has a gas outlet on one side of the gas inlet, and an upper cover is installed on the top of the desulfurizing column, and the upper cover is in sealing fit with the desulfurizing column.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the improved biogas desulfurizer.