Water curtain dust fall structure for return air upper corner on fully mechanized caving face

The utility model relates to a tunnel coal dust treatment structure, in particular to a water curtain dust fall structure for a return air upper corner on a fully mechanized caving face, which solves the problem of reducing the dust concentration in a return air upper corner passage and a tail tunnel. The water curtain dust fall structure comprises spray pipes which are installed on a top plate of the last row of single columns in a position of the return air upper corner on the fully mechanized caving face; the spray pipes are connected with cooling water outlet pipe orifices of a back-sliding tail motor; and after coal carving is started on the caving face, the spray pipes are opened to generate a water curtain for carrying out dust fall cleaning treatment on the dust flowing to the tail tunnel. Compared with the prior art, the device of the utility model can play a certain dust fall effect on the air flow dust blown to the tail tunnel, and reduces the content of the dust.