The invention discloses a ground directly-through downhole drilling device integrating water pumping and water draining tests. The drilling device comprises a water pumping test device, a water draining test device, a ground directly-through downhole drilling hole and a ground integrated receiving device. Reverse-wire water stopping sleeves a, taper water stopping devices, water spray filtering pipes, sand setting solid pipes and reverse-wire water stopping sleeves b are sequentially arranged from the ground to the downhole in the drilling hole. The water spray filtering pipes are located in an aquifer; sand setting sleeves are arranged in the sand setting solid pipes; and a water-level water temperature sensor is mounted in the drilling hole. The water draining test device comprises five flange plates and magnetic vortex flow sensors which are arranged in an underground roadway in a step-by-step variable diameter mode, and a gate valve is mounted between the bottom of the drilling hole and the water draining test device. The needs of the water pumping tests or water draining tests are fully considered, one hole meets dual-use, the disadvantage of general inconvenient construction in downhole is overcome, and ground real-time automatic monitoring of quantized data of the water level and water temperature and the like of the target aquifer is realized.