The utility model discloses a groove aeration equipment in middle of salt solution, including the middle groove of fan, aerated conduit and salt solution, fan and aerated conduit intercommunication, aerated conduit fixed mounting is the inslot in the middle of salt solution, is equipped with a plurality of openings that are used for making the middle groove of air admission salt solution on the aerated conduit, and the opening is right with the inner bottom facial features in the middle groove of salt solution. The utility model discloses can prevent calcium carbonate crystallized blocking, guarantee that normally work in middle groove, the energy consumption is low, efficient.