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The Smokehouse is a room inside of the Secret Mine in Luigi's Mansion: Dark Moon. The Smokehouse is accessed by taking the north door outside of the Chalet. The Smokehouse is a small room with a stove that releases hot coals. These hot coals can be used to melt ice and snow. There are a pair of skis, some moccasins, and several pots and dishes around the stove. The door on the south leads back into the Chalet while the door to the right leads to the Ice Lake.
During D-1: Cold Case, Luigi needs to travel through the Smokehouse to reach the Fishing Hut. When Luigi gets to the Smokehouse, the door to the Ice Lake is frozen. Luigi has to inspect the stove to get a piece of coal. However, two Greenies attack Luigi once he inspects the stove. After defeating them, Luigi can melt the ice on the door. There is also a rope hanging from the wall that is frozen with ice. Melting the ice and then yanking the rope releases several coins, bills, and Gold Bars. During D-Bonus: Severe Infestation, the Smokehouse may be one of the rooms infested with ghosts.
Starting on D-1: Cold Case and most missions after, near the entrance to the Ice Lake is a towel hanging on a hook. If Luigi shines the Dark-Light Device near this towel, another towel is revealed. After Luigi sucks up the Spirit Balls that appear, he can pull the towels. Pulling the towels cause a secret compartment to open up with a sapphire inside.