Releasing device for continuous pipe tail pipe well completion technology pipe column

The utility model relates to the technical field of continuous pipe well drilling and completion, in particular to a releasing device for a continuous pipe tail pipe well completion technology pipe column. A piston rod and a piston of a solenoid valve body of the device are connected. The outer side of the lower end pipe wall of the solenoid valve body is provided with the upper end pipe wall a tail pipe hanging device in a sleeved mode. The lower end pipe wall of the solenoid valve body and the upper end pipe wall of the tail pipe hanging device are provided with self-locking balls. The piston is placed in the lower end pipe wall of the solenoid valve body and blocks the self-locking balls. The piston and the lower end pipe wall of the solenoid valve body are sealed through an O-shaped sealing ring. Safe and smooth releasing of a continuous pipe and the tail pipe hanging device is achieved. The shortcoming that according to an existing releasing tool, safe and smooth releasing of the continuous pipe and the