Preheat oven to 400 degrees F. Arrange chile peppers on a baking sheet. Roast for 25 to 30 minutes or until skins are dark, turning once halfway through roasting. Place chile peppers in a bowl; cover with plastic wrap and let stand for 10 minutes. Carefully remove skins and seeds, chop chile peppers. Set aside.
In a 5-6 quart dutch oven heat oil over medium-high heat. Add pork; cook until browned. Add onions and garlic; cook about 5 minutes more or just until onions are tender, stirring occasionally. Add tomatillos, cumin, and oregano; cook for 3 minutes more, stirring occasionally.
Stir in broth and the water. Bring to boiling; reduce heat. Simmer, uncovered, for 15 minutes, stirring occasionally. Stir in beans, lime juice and chopped chile peppers. Simmer for 5 minutes more. Stir in cilantro and serve.