Packaging equipment for prolonging keep-alive time of fresh and alive shellfish

Packaging equipment capable of prolonging the keep-alive time of fresh and live shellfishes comprises a conveying assembly, a water conveying assembly, a filling assembly and a longitudinal film sealing assembly, the conveying assembly conveys the shellfishes into a funnel, the water conveying assembly conveys seawater into the funnel, the filling assembly comprises the funnel and a filling barrel, an outlet in the lower portion of the funnel is connected with the filling barrel, and the longitudinal film sealing assembly comprises a bag forming barrel and a film sealing block. The bag forming cylinder is sleeved on the filling cylinder, an opening through which the overlapped part of the packaging film after bag forming passes is formed in the circumference of the bag forming cylinder, the opening is connected with the film sealing block, a boss is arranged on the film sealing block, a film sealing gap is formed in the boss, heating holes are formed in two sides of the film sealing gap, heating wires are arr