Mud gun drilling tool

A mud gun drilling tool belongs to the geophysical exploration technical field. Threads of a drilling rod connection head are connected with the standard drilling rod of a drilling machine. The drilling rod connection head is fixed with an upper cone through an upper slip element. The upper cone is fixed with a lower cone through a lower slip element. Therefore, a main body structure of the mud gun drilling tool is formed. The mud gun drilling tool has a hollow structure. The upper cone is composed of two semi-tubular structures. The semi-tubular structures are fixed by the upper slip element and the lower slip element to form a hollow structure where a mud gun is arranged. The wall of the upper cone is provided with a gas outlet corresponding to the gas port of the mud gun. The tool can achieve well drilling and in-well excitation of the mud gun once. The production efficiency is greatly improved. The unique double-cone structure effectively prevents a well head collapse in areas with high sand contents. The excitation effects are improved. A mud gun epicenter system adopting the drilling tool can have the working area expanded and work well in areas such as marshes and sea beach transition zones. Exploration construction problems in those areas are effectively solved.