Indoor fire-fighting ventilation and smoke exhaust device

The utility model discloses an indoor fire-fighting ventilation and smoke exhaust device, and relates to the technical field of fire-fighting ventilation. Comprising a ventilation device shell, a filter screen is fixedly installed on the front inner wall of the ventilation device shell, a rectangular groove is formed in the rear surface of the ventilation device shell, an activated carbon ventilation plate is movably connected to the inner wall of the rectangular groove of the ventilation device shell, and sliding blocks are symmetrically arranged at the left end and the right end of the activated carbon ventilation plate; the two sliding blocks are slidably connected to the inner wall of the rectangular groove of the ventilation device shell, an air guide pipe is fixedly connected to the upper surface of the ventilation device shell in a penetrating mode, and a smoke exhaust mechanism is fixedly connected to the upper surface of the air guide pipe; the smoke exhaust mechanism comprises a case, a fan is arran