The utility model discloses a mixed cold storage device for a rescue capsule. In order to overcome the defect that the ice-less cold storage and carbon dioxide cold storage are combined with each other in the prior art, the mixed cold storage device is provided with a CO2 cold storage device and an ice cold storage device, wherein the CO2 cold storage device consists of a CO2 gas bottle, a conflux bar, an expansion refrigeration fan and a heat exchanger; an explosion-proof shell is arranged outside the ice cold storage device; an ice storage tank, an airway and a refrigerating unit are arranged inside the ice cold storage device; a wind tunnel is arranged at the lower part of the ice storage tank; an air inlet and an air outlet are formed at two ends of the wind tunnel; the ice storage tank is internally provided with an ice storage coil pipe that is communicated with the refrigerating unit; the heat exchanger is communicated with the refrigerating unit; the expansion refrigerating fan is connected with the wind tunnel; and the heat exchanger is arranged at the wind outlet of the wind tunnel. The mixed cold storage device can be matched with the mining rescue capsule for use.