The invention provides a device for producing
biogas by two-phase three-section
anaerobic digestion of high solids of perishable organic wastes. The device comprises a
hydrolysis acid-production reactor and a
methane-production reactor, wherein the two reactors are connected with each other, and the bottoms of the reactors are communicated through a
circulating pump and a
pipe; the
hydrolysis acid-production reactor is a
solid infiltration
bed reactor, the top is provided with a water
distributor and a spray header, the middle-upper part is provided with a feeding port, the middle-lower part is provided with a perforated plate and a discharging port, the bottom is provided with a residue-discharging port, and infiltration fillers are arranged on the upper surface of the perforated plate; and the
methane-production reactor consists of a filter filler
bed and a
fiber filler
bed, wherein the filter filler bed is arranged on the lower part of the
methane-production reactor, the filter filler bed is arranged on the upper part of the methane-production reactor, filter fillers are arranged in the filter bed, a
fiber filler frame is arranged in the
fiber filler bed, and the fiber filler frame is wound by fiber fillers. The device has the advantages of simple
processing procedures, low cost, easy maintenance, stable and reliable performance and suitability for the
anaerobic digestion treatment of various perishable organic wastes, and has the capability of producing the
biogas in high efficiency and stably by the
anaerobic digestion of perishable organic wastes.