Rapid coring type coring drill bit

The invention relates to the technical field of coring drill bits, in particular to a quick coring type coring drill bit which comprises a coring outer cylinder, a drill bit body is connected to the outer side of the lower end of the coring outer cylinder through threads, blades are fixedly installed on the outer side of the lower end of the drill bit body along the circumference, PDC teeth of different sizes are fixedly installed on the outer sides of the blades, and a coring inner cylinder is arranged on the inner side of the coring outer cylinder. The drill bit is reasonable and compact in structure and convenient to use, the PDC teeth of different sizes are arranged, the large teeth and the small teeth complement each other in advantages, the invasion capacity, aggressiveness and rock breaking efficiency of the coring drill bit can be considered, the working stability of the coring drill bit is improved, the service life of the drill bit is prolonged, the guiding capacity of the drill bit is improved, and