In a small bowl, stir together the melted butter, brown sugar, cinnamon, nutmeg, and salt until well combined.
Pat the pineapple rings dry with paper towels. This step is important because removing surface moisture helps the rings caramelize rather than steam in the air fryer.
Brush both sides of each pineapple ring generously with the brown sugar butter mixture, making sure every ring is well coated.
Preheat the air fryer to 400 degrees F for 3 minutes. Arrange the pineapple rings in a single layer in the basket, working in batches if needed to avoid overcrowding.
Air fry for 5 minutes, then carefully flip each ring and brush with any remaining butter mixture. Cook for an additional 4 to 5 minutes until the edges are deeply caramelized and golden.
Transfer the pineapple rings to a serving plate and drizzle with honey while still hot. Serve warm on their own, over vanilla ice cream, or alongside grilled meats.