Novel photovoltaic alternating current junction box

The utility model relates to a novel photovoltaic AC wire collecting box comprising a supporting mechanism, and the top of the supporting mechanism is fixedly connected with a dehumidifying mechanism. The dehumidifying mechanism comprises a fixed box, a first pump body is fixedly connected to the top of the fixed box, a first fixed pipe is fixedly connected to a pipe outlet of the first pump body, a second fixed pipe is fixedly connected to a pipe inlet of the first pump body, and a movable door is movably connected to the right side of the fixed box; dustproof cotton is fixedly connected to the left side of the movable door, a dehumidification box is fixedly connected to the interior of the fixed box, a second pump body is fixedly connected to the interior of the dehumidification box, a first connecting pipe is fixedly connected to a pipe outlet of the second pump body, mesh holes are formed in the right side of the dehumidification box, and a dehumidification mesh cylinder is movably connected to the interi