The utility model relates to an automatic wet acetylene blanking system which comprises a silo, a buffer stock bin, a small hopper, an acetylene generator and a master control terminal, wherein the master control terminal is a PC (Personal Computer), and a control program is preset inside the master control terminal. The silo is communicated with a feed inlet of the buffer stock bin through a large dip angle belt, a discharge port of the buffer stock bin is communicated with a feed inlet of the small hopper through a pan conveyor, lower and upper storage buckets are arranged between the acetylene generator and the small hopper, and a discharge port of the small hopper is communicated with a feed valve of the upper storage bucket, wherein the feed valve is the valve of the upper storage bucket. A discharge port of the upper storage bucket is communicated with a feed valve of the lower storage bucket, wherein the feed valve is the valve of the lower storage bucket. A discharge port of the lower storage bucket is communicated with a feed inlet of the acetylene generator, and an electromagnetic oscillator is installed at the communicating part. According to the automatic wet acetylene blanking system, the full-automatic self-controlled blanking manner is adopted for replacing the original manual control step, so that the production capacity of enterprises is improved, the production time is shortened, and the production cost is lowered. The precise feeding degree of each link is greatly improved, and the product quality is enhanced.