Cold region tunnel winter construction cave entrance thermal insulation gate

The invention relates to a cold region tunnel winter construction cave entrance thermal insulation gate. The cold region tunnel winter construction cave entrance thermal insulation gate comprises a thermal insulation wall, wherein the thermal insulation wall is provided with a vehicle passage gate, a pedestrian passage gate, an air exhausting draught fan, a ventilation pipeline channel and a construction pipeline channel; the vehicle passage gate is located in the central position of the lower portion of the thermal insulation wall, the pedestrian passage gate is located on one side of the vehicle passage gate, and the construction pipeline channel is located on the other side of the vehicle passage gate; the air exhausting draught fan and the ventilation pipeline channel are both located above the vehicle passage gate. The thermal insulation gate provided by the cold region tunnel winter construction cave entrance thermal insulation gate can provide good thermal insulation effects for the interior of a tunnel in winter, and the passage of vehicles and pedestrians are facilitated; the air exhausting draught fan can exhaust turbid air in the tunnel out.