Coal mine drill hole sealing device

The invention relates to a coal mine drill hole sealing device. The coal mine drill hole sealing device comprises a hole sealing pipe, a hole sealing net structure is arranged on the outer side of the hole sealing pipe in the radial direction, the hole sealing net structure is arranged on the outer side face of the hole sealing pipe in a welded mode, a hole sealing capsule structure is arranged on the hole sealing net structure, and a first grouting pipe, a second grouting pipe and a third grouting pipe are arranged on the hole sealing net structure. According to the coal mine drill hole sealing device, broken stones generated by drilling are utilized through a blocking grating, the friction force between the coal mine drill hole sealing device and a drilled hole is increased through an iron gauze, segmented grouting or simultaneous grouting can be achieved through the multiple grouting pipes, and a spiral stock bin in the hole sealing capsule structure increases the contact area of two materials so that the