PROBLEM TO BE SOLVED: To provide an air driven human body cooling system dispensing with a power supply and capable of highly efficiently and safely cooling a human body of a worker working under high temperature environment.SOLUTION: The system cools a human body of a worker by circulating cooling water between a cooling vest 2 that the worker wears, and a cooling device body 1. Cool air obtained by supplying a compressed air to a vortex tube 14 is blown to a water tank 11 to decrease a water temperature, and the obtained cooling air is fed to the cooling vest 2 by an air driven pump 12. This configuration is safe because using the compressed air as the drive source, and further this configuration can highly efficiently cool the human body.
