Metal product pickling device

The utility model discloses a metal product pickling device which comprises a pickling tank, a pickling tank, a pickling tank cover plate, a pickling tank cover plate and a pickling tank cover plate, a liquid discharge pipe is arranged at the bottom of the pickling tank; movable blocks are arranged on the two sides of the supporting basket respectively, the movable blocks are in threaded connection to a first screw rod, and a smooth section at the bottom end of the first screw rod extends out of the pickling tank to be connected with a transmission assembly in a transmission box; the spraying assembly is located above the supporting basket; the spraying assembly is driven by a moving mechanism to reciprocate in the length direction of the pickling tank; the spraying assembly comprises a supporting plate, a spraying pipe with a spraying head is installed on the bottom face of the supporting plate, an input pipe communicated with the middle of the spraying pipe is arranged on the supporting plate, the input pip