Underground water collection device

An underground water collection device comprises a vibrating unit and a driving unit. The vibrating unit can vibrate in the perpendicular direction. An overflowing hole is formed in the bottom of the vibrating unit. An inertia ball is arranged inside the vibrating unit and can freely move up and down in the vibrating unit. The diameter of the inertia ball is larger than that of the overflowing hole. The driving unit makes the vibrating unit vibrate by driving an elastic assembly which is connected to the driving unit and connected with the vibrating unit. A guide pipe is connected with the vibrating unit so as to lead underground water to the ground surface. The underground water collection device can adapt to the diameters of well openings of various operating wells and can work within the wide working depth range; in the working process, vibration is generated through electromagnetic force, only the vibrating unit vibrates, and therefore the guide pipe and well walls can not be damaged.