The invention provides a pipeline and inflow shaft connecting structure for relieving discharge of a trapped air mass in a deep tunnel. Partition channels which are connected with each other are arranged at the joint between the deep tunnel and shafts, and the partition channels are provided with intervals of a linear type and a curved type. Through the arrangement of the partition channels, a pressurized large air mass generated by rapid inflow of the shafts in a deep tunnel pipeline is divided into small air masses and discharged from the shafts, so that the damage to an internal energy dissipation structure of the shafts when the pressurized large air mass in the pipeline is discharged from the shafts is effectively reduced, and the process of violent gas discharge is slowed down. The tail portions of the partition channels are arranged in a divergent mode, so that dispersed small bubbles are separated from one another and cannot be combined into pressurized large bubbles, the smallbubbles are discharged from the shafts, and the safety performance of the pipeline is improved. The pipeline and inflow shaft connecting structure for relieving the discharge of the trapped air massin the deep tunnel is particularly suitable for the use in deep tunnel pipeline structures.