Gas inlet box of hydrogen fuel stack

The utility model discloses an air inlet box of a hydrogen fuel stack, which comprises an air inlet box shell, the air inlet box shell comprises a trapezoidal box and a rectangular box which are communicated with each other, one side of the rectangular box far away from the trapezoidal box is of an opening structure, an air inlet box cover cap is arranged at the opening of the rectangular box in a matched mode, and a groove is arranged in the middle of the air inlet box cover cap. A plurality of through holes are uniformly formed in the groove of the air inlet box cover; a drain pipe for draining water and an air pipe for exhausting air are mounted at the bottom of the air inlet box shell, the drain pipe is communicated with the outside of a vehicle through a drain connecting pipe, and the air pipe is communicated with an air filter through an air filter air inlet pipe; the upper end face of the lower partition plate is higher than the lower end face of the upper partition plate, so that rainwater can be effe