Drainage equipment for brine mining channel

The utility model relates to a drainage device for a brine sampling channel, which comprises a support (1) and a drainage pipe (2), the drainage pipe (2) is formed by bending a straight pipe into an inverted V shape, is arranged on the support (1) and comprises a water inlet pipe (3) and a drainage pipe (4) which are positioned on two sides of the bending part and are communicated with each other, the bending part is positioned at a high position, and the opening ends of the water inlet pipe and the drainage pipe which are positioned on two sides are positioned below the bending part. The length of the drainage pipe is larger than that of the water inlet pipe, the open end of the drainage pipe is located below the open end of the water inlet pipe, the open end of the water inlet pipe serves as a water inlet, a water injection pipe (41) is arranged at the position, close to the water inlet pipe, of the drainage pipe, the water injection pipe (41) is vertically arranged and communicated with the interior of the