Marine device capable of preventing filter from being blocked by ice flocculation

The utility model provides a marine device capable of preventing a filter from being blocked by ice flocculation. The device comprises a filter, a filter shell, a seawater sucking port, a water outlet and a connection pipe, wherein the lower end of the filter shell is connected with the water sucking hole of a ship body by means of welding to guarantee fixing and sealing; the water outlet is formed on the other side of the filter shell and is connected with a ship seawater system by virtue of a flange; the filter is arranged in the filter shell; the upper end of the connection pipe is tightly pressed at the water inlet of the lower end of the filter by virtue of a compression plate to play roles in fixing and sealing; and the other end of the connection pipe is deep into a seawater ice flocculation layer outside the ship body by virtue of the water sucking hole of the ship body. The marine device has the effects that the connection pipe is lengthened to suck the seawater below the seawater ice flocculation la