New coal drill pipe has the advantages of light weight (45% lighter than the old twist drill pipe), footagequickly, small dust, vertical drilling down without leaving the cuttings, pore forming analysis. The newcoal drill rod and the drill head can be separated using the tail, prolong the life. Spring pin or screwconnection, convenient and quick. The new coal drill pipe is divided into single screw blade, doublehelicalbladeand water type and dry type.