That's a very specific and interesting question! Yes, such trash cans do exist and are more common than you might think. You're describing a specialized type of public litter bin designed to address a specific urban issue: cigarette butt disposal.
These units are typically called "ashtray bins" or "smoking receptacles." The integrated sand urn (or sometimes a metal mesh bucket) on top serves a crucial purpose. It's filled with sand or a non-combustible granular material to safely extinguish cigarette butts before they enter the main waste compartment. This design significantly reduces the fire risk that hot embers pose when tossed into a regular bin filled with paper and other flammable trash.
You'll often find them in strategic urban locations: outside office buildings, near public transport entrances, in designated smoking areas of parks, at airport terminals, and outside bars and restaurants. Their design varies from sleek, modern stainless steel columns to more robust, functional units that blend with street furniture.
The primary benefit is twofold. First, it promotes cleaner streets by providing a convenient and safe place for smokers to dispose of their cigarette waste, preventing butts from being littered on sidewalks. Second, it enhances public safety by containing fire hazards. So, if you're looking to install one, search for suppliers using terms like "public ashtray bin," "outdoor smoking receptacle," or "litter bin with integrated sand urn." They are a smart piece of urban infrastructure for managing a common form of litter.