The beer pasteurizing tunnel can be made by single layer or double-layer, double-channel chain network pasteurizer. the tunnel is kind of a frame structure. It adopts high speed ratio transmission and variable frequency speed regulation. Large flow spraying, continuous chain network transmission, smooth operation, good water permeability. Adopting PID temperature automatic control or PU value automatic control, the control precision is high, the temperature reaction time is short, and the energy is saved. It is used for sterilization of bottled beer, fruit wine, sparkling wine, beverage and food.