Prepare a campfire for cooking over medium heat.
Place the bacon in a cold Dutch oven and set the Dutch oven on a campfire grate or suspend it from a tripod over the fire. Cook until the bacon is almost crisp, 15 to 20 minutes. Remove the bacon with a slotted spoon and transfer to a bowl.
Add the kielbasa to the bacon drippings in the pot. Cook, stirring occasionally, until the sausage begins to brown on both sides, 5 to 8 minutes. Remove with a slotted spoon and add it to the bowl with the bacon.
Add the beef, onion, and garlic to the Dutch oven and cook until the beef is browned and the onion begins to soften, about 7 minutes.
Stir in the flour, chili powder, salt, and pepper and cook for 1 minute.
Add the tomatoes, corn, potatoes, and water. Bring to a simmer, cover the Dutch oven, and cook until the potatoes are tender, about 20 minutes.
Stir in the bacon and kielbasa, and let simmer until heated through about 5 minutes. Season to taste with additional chili powder, salt, and pepper, if desired.