Multi-crest-tooth drill bit

The invention discloses a multi-crest-tooth drill bit, which belongs to the technical field of drilling equipment for petroleum and natural gas, terrestrial heat, geophysical prospecting and the like, and comprises a drill bit body and multi-crest teeth, the multi-crest teeth are arranged on the drill bit, each multi-crest tooth is composed of an upper tooth crown and a lower tooth body, and the tooth crown of each multi-crest tooth is provided with at least two tooth crests. A plurality of peaks and valleys are arranged on the tooth crown of the multi-peak tooth, each peak and valley structure comprises an arc-shaped convex part and an arc-shaped concave part connected with the arc-shaped convex part, and the rock invasion capacity of the multi-peak tooth is obviously higher than that of conventional tooth teeth; the transverse size of the tooth crowns of the multi-peak teeth is large, so that the area of the teeth during scraping and cutting rocks is ensured; the tooth crown of the multi-peak tooth can be m