The invention discloses a non-resource-exploitation dewatering construction method and a dewatering well. According to the invention, the earth surface is divided into a surface shallow water layer, an impermeable stratum and a surface deep water layer through arranging a dewatering well with a certain depth, wherein water of the surface shallow water layer is directly drained into the surface deep water later by a pump. According to the specific construction method, the pump is arranged at the upper part of the dewatering well, the water inlet of the pump is arranged at the upper part of thedewatering well, the water outlet of the pump is arranged at the lower part of the dewatering well, a great number of water inlet holes are arranged on the well wall at the upper part of the dewatering well, a great number of water outlet holes are arranged on the well wall at the lower part of the dewatering well, the middle well wall of the dewatering well is closed; and the diameter of the lower part of the dewater well is less than that of the upper part of the dewatering well; and an exhaust pipe is also arranged at the upper part of the dewatering well. The non-resource-exploitation dewatering construction method has the following advantages: 1, dewatering problem is solved only by the arrangement of one dewater well, thus the structure is reasonable, the construction is convenient and the cost is low; 2, valuable water resource is saved; and 3, construction is flexible, and different numbers of dewatering wells can be arranged according to different earth surface conditions.