NOVELTY - The biogas purification top-pouring device comprises a shell body (1), where the top of the shell body is provided with a processing device (2) and a bottom of the processing device, the bottom of the processing device is provided with a gas-liquid separation chamber (3), the gas-liquid separation chamber comprises multiple reversed cones, the reversed cone is arranged with a multiple scuppers, an upper surface of the gas-liquid separation chamber is arranged with a drying chamber (4), and the upper surface of the drying chamber is arranged with a desulfurization chamber (5).    USE - The biogas purification top-pouring device is useful for desulfurizing natural gas and coal gas.    ADVANTAGE - The biogas purification top-pouring device has reduced corrosion of household cooker, good quality, good affectivity, and has simple structure, cost-effective and environment-friendly.    DETAILED DESCRIPTION - The biogas purification top-pouring device comprises a shell body (1), where the top of the shell body is provided with a processing device (2) and a bottom of the processing device, the bottom of the processing device is provided with a gas-liquid separation chamber (3), the gas-liquid separation chamber comprises multiple reversed cones, the reversed cone is arranged with a multiple scuppers, an upper surface of the gas-liquid separation chamber is arranged with a drying chamber (4), the upper surface of the drying chamber is arranged with a desulfurization chamber (5), the upper surface of the desulfurization chamber is arranged with a drying chamber, the top of the processing device is provided with an outside thread and an upper cover, the upper cover is provided with an internal thread matched with the outside thread at the top of the processing device, a sealing gasket is arranged with the upper cover and the processing device, the top of the upper cover is provided with a gas outlet, the gas outlet is provided with a control valve, and the desulfurization chamber is a cylindrical metal mesh inside installed with a solid iron oxide desulfurizer.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram of a biogas purification top-pouring device.    Shell body (1)    Processing device (2)    Gas-liquid separating chamber (3)    Drying chamber and (4)    Desulfurization chamber. (5)