Device and method for drilling while freezing in deep development of mine

The invention discloses a device and method for drilling and freezing at the same time during mine deep development, the device comprises a drilling machine and a drill bit connected with the drilling machine, the drilling machine can drive the drill bit to rotate for drilling, the device further comprises a guide pipe and a storage device, and a freezing medium is stored in the storage device; the drill bit comprises a solid part, a hollow cavity and an outer wall part, the hollow cavity is an annular cavity and is located between the solid part and the outer wall part, and the outer wall part is provided with a front-end spraying hole and a tail-end spraying hole which are communicated with the hollow cavity; the drill bit is connected with the storage device through a guide pipe, and a freezing medium stored in the storage device enters the hollow cavity through the guide pipe; the effect of drilling and water stopping at the same time can be achieved, and drilling and water stopping are synchronously comp