Tunnel deep hole grouting device and method

The tunnel deep hole grouting device comprises a driving device, the rotating end of the driving device is connected with a drilling part or a steel floral tube or a grouting part, and the rotating end of the driving device is connected with the drilling part and used for driving the drilling part to rotate. According to the construction method, drilling, steel floral tube mounting and grouting operation can be conducted on surrounding rock or soil through the driving device, in the process, only the corresponding construction structure needs to be replaced, the driving device does not need to be replaced, and therefore the number of used equipment is small, cost is low, and meanwhile consumed time is short. In addition, when the steel floral tube is installed, the outer wall of the steel floral tube is smooth so that the steel floral tube can be conveniently installed in a grouting hole, meanwhile, before grouting is started, the grouting piece is installed in the steel floral tube, the grouting piece extrud