Reaming drilling tool and directional drilling method

The invention provides a reaming drilling tool and a directional drilling method. The reaming drilling tool comprises a drill bit, a matching connector, a first reamer, a drilling motor, a locking device combination body, a drill rod and drill collar combination body and a second reamer, and the drill bit, the matching connector, the first reamer, the drilling motor, the locking device combination body, the drill rod and drill collar combination body and the second reamer are sequentially connected. The first reamer and the second reamer are connected through the locking device combination body and the drill rod and drill collar combination body, a first reaming well and a second reaming well can be reamed at a time, and the problems that in the prior art, the number of times of tripping of a well reaming drilling tool is large, the build-up rate is difficult to guarantee, the well reaming efficiency is low, and the well reaming cost is high are solved. 本发明提供了一种扩眼钻具及定向钻井方法，扩眼钻具包括：钻头、配合接头、第一扩眼器、钻井马达、锁定器组合体、钻杆钻