To facilitate joining work by a joint.

In this water collecting pipe, a cross-sectional shape of a water collecting pipe body constituting a pipe body is formed in a corrugated shape wherein projecting parts and recessed parts continue, a reinforcing metal wire is embedded in a wall thickness part of the projecting part, and a large number of water collection holes are bored in the recessed part. A center part in the right and left direction of the joint 13 is formed with a screw handle 14, a peripheral part on one end side of the joint 13 is formed with a male screw 16 of a left-hand thread, a female screw 18 screwed on the male screw 16 is formed in an inner circumferential part of an end part of one water collecting pipe body, a peripheral part on the other end side of the joint 13 is formed with a male screw 17 of a right-hand thread, and a female screw 19 screwed on the male screw 17 is formed in an inner circumferential part of an end part of the other water collecting pipe body.