The utility model discloses a level is directional bores with efflux formula churn drilling tools that surges belongs to the horizontal directional drilling crossing pipeline laying construction field of hard bad ground. This churn drilling tools includes at least: top connection, disc spring, adjusting shim, last gland, outer shell, fluidic element, cylinder body, stroke control awl pole, piston, cylinder cap, middle connector, block stamp, direction slider, outer tube, semicircle card, hammering block, all directions cover and seal structure, top connection lower part hookup outer shell, outer shell lower part hookup middle connector, middle connector lower part hookup outer tube, the hookup of outer tube lower part is the cover from all directions. Its job stabilization, the ballistic work is big, breaks rock ability reinforce, can obviously improve the efficiency of creeping into of the horizontal directional drilling crossing of hard formation construction, shortens horizontal directional drilling crossing construction cycle, reduces horizontal directional drilling crossing pipeline laying construction cost, it assaults the rotary drilling construction to be applicable to the horizontal directional drilling crossing guiding hole in hard rock stratum.