Dry ice machine for creating fog effect

A dry ice machine, comprising:

• an outer casing having a liquid containing space;
• a lifting assembly including a lifting member and an operating member, wherein the lifting member is movably disposed on the outer casing, and the operating member is connected to the lifting member to drive the lifting member to move along a lifting axis relative to the outer casing;
• a dry ice container for carrying dry ice pellets detachably assembled to the lifting member, wherein the dry ice container has a plurality of through holes, so that an internal space of the dry ice container is in spatial communication with the liquid containing space, when the lifting member is ascended or descended, the dry ice container is driven by the lifting member to be ascended or descended;
• a fog outlet pipe detachably assembled to the outer casing and including a backflow section and a bending section connected to the backflow section so as to guide the fog generated in the liquid containing space to the outside of the outer casing;
• wherein the outer casing includes a main housing defining the liquid containing space, and the operating member includes a pin portion and a grip portion that are connected to each other;
• wherein when the operating member is in a fixed state, the pin portion penetrates the lifting member and abuts against the main housing;
• and
• when the operating member is in a movable state, the pin portion is connected to the lifting member without being in contact with the main housing.