Well electrospark explosion device

The utility model relates to a well electro-spark explosion device, being made up of a positive electrode, a negative electrode, a discharging counter electrode and an insulating barrier. The positive electrode and the head of the positive electrode of the discharging counter electrode are interconnected by the connector, and the positive electrode and the insulating barrier are sealed in an alloyed steel liner by the negative electrode. The space between the head of the positive electrode and the head of the negative electrode of the discharging counter electrode can be adjusted, and the head of the negative electrode of the discharging counter electrode is welded with the alloyed steel liner by the metal connecting rod. The whole device is simple in structure and can be used time after time, and it is easy and simple to handle when being used without polluting the environment.