The invention relates to a sand-free precipitation well and a construction method thereof in the field of precipitation projects. The sand-free precipitation well comprises a well pipe (1), a water filtering film (2), a water converging groove (3) and a water outlet channel (5), wherein the water converging groove (3) is located between the well pipe (1) and the water filtering film (2), and the water converging groove (3) is communicated with the well pipe (1) through the water outlet channel (5). The sand-free precipitation well can be directly inserted into a completed soil body well and is plug and play, a well washing process is not needed, the construction speed is high, the construction cost is low, the quality is good, no slurry is produced in the construction process, and the benefit of environmental protection is good.