The present invention discloses a colostomy appliance consisting of two pouches, in which one pouch is designed to collect the faecal waste, and the other pouch is designed to receive the above pouch. The first pouch can be easily inserted into the second pouch and removed from the second pouch when it is fully loaded by waste. The liner pouch is made of plastic material which is flushable and biodegradable. The outer pouch is made of laminated breathable PE and nonwoven material, allowing for increased comfort and functionality of collecting waste next to an individuals abdomen. The outer pouch is sprayed on the inside with odour control compound to mitigate the faecal odour. Both the two pouches are designed for ease of use. Wearers can easily carry and replace the inner pouch in public facilities and the materials used for the pouch are silent ensuring discreetness during movement.