Wall surface drilling device with drill bit convenient to replace

The utility model provides a wall drilling device with a drill bit convenient to replace, and relates to the technical field of wall drilling equipment, the wall drilling device with the drill bit convenient to replace comprises a shell, one side of the shell is provided with a drill bit inlet, and the outer surface of the shell is rotatably connected with a drill bit box; at least two drill bit containing holes are formed in the drill bit box, the drill bit containing holes coincide with the drill bit inlet when rotating, a rotating driving device is fixedly installed on the inner wall of the shell, the output end of the rotating driving device is connected with a transmission pipe, one end of the transmission pipe is fixedly connected with a clamping device, and the other end of the transmission pipe is fixedly connected with a clamping device. A drill bit box is rotationally connected to the outer surface of the shell, a drill bit containing hole is formed in the drill bit box, and the effect that the dril