The spiral pre cooler is one of the important equipment in the poultry slaughter production line. This machine is designed based on the principle of spiral fluidization and is suitable for the pre cooling and sterilization process of poultry after being removed from the chamber. The pre cooling tank adopts a U-shaped tank structure and uses air flow to stir and cool the water. After being cooled by the pre cooling machine, the poultry body has a good effect and the appearance of the poultry body is not damaged, and the color of the carcass is fresh. The internal temperature of the bird body can be reduced to 6-8 ℃, and the ability of bacteria to reproduce can be greatly reduced. This machine is made of stainless steel material, which fully complies with hygiene standards. At the same time, different specifications of models can be manufactured according to user needs. This machine has the characteristics of compact structure, simple operation, reliable performance, high production efficiency, and strong applicability.