Tunnel air vibration attenuation device for high-speed train

The invention relates to the field of tunnels, and particularly discloses a tunnel air vibration attenuation device for a high-speed train. The tunnel air vibration attenuation device comprises a plurality of vibration attenuation units and actuators, and the vibration attenuation units and the actuators are distributed at intervals in the circumferential direction of the inner wall of a tunnel; each vibration attenuation unit comprises a plurality of absorption barrels, pressing rods and baffles; the absorption barrels are distributed in rows, the absorption barrels are pre-buried in the inner wall of the tunnel and filled with sponges; pressing plates are arranged at the upper ends of the pressing rods, the pressing plates are slidably arranged in the absorption barrels and located above the sponges, the pressing rods are hollow, a plurality of air holes are formed in the side walls of the pressing rods, and the bottoms of the pressing rods are connected with the baffles; and each actuator comprises two tra