The utility model relates to the technical field of foam liquid adding devices, in particular to a tunnel portable foam liquid adding device which comprises a bottom plate, a fixing rod is fixedly connected to the outer side of the bottom plate, and a rotating shaft located at the bottom end is rotationally connected to the interior of the fixing rod. Through the arrangement of the fixing shell, the first limiting groove, the first limiting plate, the limiting block, the connecting plate, the
handle, the spring, the first fixing plate, the fixing shaft, the supporting plate, the second limiting plate, the fixing block and other components, firstly, a
water pipe penetrates through a hole in the supporting plate; a
water pipe is circularly wound left and right under the limiting of the fixing shaft and the second limiting plate, after the
water pipe is wound, a spraying opening of the water
pipe is close to the fixing block on which side, the water
pipe is inserted into the fixing block on which side, the water
pipe is stored and fixed, then the first fixing plates are separated towards the two sides, and the water tank is clamped between the first fixing plates.