Etching device for high-density multilayer circuit board

The utility model discloses an etching device for a high-density multilayer circuit board, which relates to the technical field of circuit boards, and is characterized in that the etching device comprises a box body, a cleaning device, a parallel belt conveyor and an etching device, and the left side wall of the box body is provided with a first sealing door; a second sealing door is arranged on the right side wall of the box body; a parallel belt conveyor and an etching device are arranged on the inner wall of the bottom of the box body A cleaning device, a first air blower, a second air blower and two telescopic devices are sequentially arranged on the inner wall of the top of the box body from left to right. The etching device comprises an etching box and a placement frame placed in the etching box, and a liquid outlet is formed in the bottom of the etching box; a drain pipe and a collecting box are arranged on the outer wall of the bottom of the box body, the top end of the drain pipe is connected with th