Elevator car ventilation device

The elevator car ventilation device comprises an elevator body, a partition plate is fixedly connected to the position, close to the top, of the inner wall of the elevator body, air inlet holes are symmetrically formed in the top of the partition plate, first lock holes are formed in the sides, close to the air inlet holes, of the partition plate, and filtering mechanisms are arranged at the positions, located at the lower portions of the air inlet holes, of the partition plate. And the filtering mechanism comprises a rotating plate rotationally connected to the bottom of the partition plate through a hinge. Through the arrangement of the filter mechanism, when the filter screen is disassembled, only a push plate needs to be pushed to enable a locking block to be separated from a first locking hole, the filter screen can be disassembled conveniently and simply, meanwhile, when the push plate moves, a magnet and an iron sheet attract each other temporarily, a movable plate and a rotating plate are staggered te