Biogas recycling mixer

The utility model relates to a biogas recycling mixer, which belongs to the biogas engineering equipment, particularly relates to the anaerobic reactor with a mixer for biogas engineering. The biogas recycling mixer comprises a fermentation tank, a biogas pipeline, a ball valve, a biogas compressor, a biogas compressor outlet, a biogas compressor inlet, a ball valve, a main biogas outlet pipe, a cut-off valve, a distributor, a branch biogas pipe, a check valve and a control system. The utility model overcomes the defects of the existing biogas recycling mixer such as high energy consumption, low mixing speed, incomplete mixing of raw materials and low biogas generating rate, and provides a biogas recycling mixer which has the advantages of low energy consumption, high mixing speed, complete mixing of raw materials and high biogas generating rate. Moreover, due to the simple design and reasonable use, the utility model is applicable to promotion and application.