Safety shell with suppression pool

The invention discloses a safety shell with a suppression pool. The suppression pool and a dry well which is located above the suppression pool and isolated from the suppression pool are arranged in the safety shell. The suppression pool has a water space and a gas space. A gas-liquid circulating pipe for making the water space communicated with the dry well is vertically arranged between the water space and the dry well. A vacuum breaking valve is arranged between the gas space and the dry well. A first isolating hole is formed in the suppression pool. The first isolating hole is isolated from the suppression pool and communicated with the dry well. The first isolating hole contains a reactor pressure container. The water space surrounds the first isolating hole so that water of the water space can surround the reactor pressure container. The safety shell is good in suppression effect, good in radiation shielding effect, simple and compact in layout, capable of restraining the liquid level waving of the suppression pool and suitable for being used in a marine nuclear reactor in the marine environment.