Roadway large-section tunneling gas control device

The utility model relates to the technical field of ventilation devices, in particular to a roadway large-section tunneling gas control device. According to the technical scheme, the device comprises a cart, an air inlet box, an air outlet box and a first filter cartridge, the air inlet box is arranged in the middle of the top surface of the cart, the air outlet box is arranged on the outer top surface of the air inlet box, a first box body is arranged in the air inlet box, a first sound absorption plate is fixed to the inner middle surface of the first box body, and a first fan is arranged on the surface of the first sound absorption plate; and a second box body is arranged in the air outlet box, and a second sound absorption plate is fixed to the surface of the middle in the second box body. The two air boxes are installed in an up-down structure, the lower air box is used for exhausting air, the upper air box is used for blowing air, and the air exchange function is achieved through one-time exhausting and