Cooling device of garbage incinerator

The utility model discloses a garbage incinerator cooling device which comprises a cooling pipe seat, the input end of the cooling pipe seat is fixedly connected with a liquid inlet pipe, the output end of the cooling pipe seat is fixedly connected with a branch pipe, the outer end of the branch pipe is provided with a rotating disc, and the rotating disc is sleeved with a spraying seat. Tension plates distributed annularly are fixedly installed on the inner side of the spraying base, and ten sets of spraying holes opposite in position are formed in the outer wall of the spraying base. According to the garbage incinerator cooling device, through arrangement of all assemblies on the cooling pipe base, the garbage incinerator cooling device can be assembled on the inner wall of an incinerator, meanwhile, a cooling water body is conveyed into an inner cavity of the cooling pipe base through a liquid inlet pipe, water flow with impact force impacts a tension plate on the inner side of a spraying base, the sprayin